Five baseballs with RPM Baseball Spin Trainer branding on a white background

Five RPM Baseball Spin Trainer with different designs on a white background

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RPM Baseball Spin Trainer

Name: RPM Baseball Spin Trainer
Brand: Anytime Baseball Supply
SKU: RPM-4S+2S
Price: 44.99 USD
Availability: InStock

The RPM Spin Trainer helps pitchers get more strikeouts and develop the kind of movement that makes hitters miss. It works by showing exactly what his release is doing on every single throw — clean rotation means he's on top of the ball, wobble means something's off. That instant feedback is how pitchers learn to command a fastball, sharpen a curve, sell a changeup, and finally throw the pitches they've been trying to learn.

$44.99 $49.98

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See why pitching coaches & parents love it

Great pitchers have repeatable release point and mechanics — and that's exactly what the RPM Baseball Spin Trainer helps young pitchers learn to do. Every throw becomes a coaching moment. Clean rotation means he got behind the ball. Wobble means something's off in the grip, wrist, or release point.

He sees the mistake, adjusts on the next throw, and starts building real muscle memory — no radar, no cameras, no expensive lessons required.

The result is more strikes, more strikeouts, and sharper movement on every pitch.

Weight	5 oz (regulation)
Material	Genuine cowhide leather
Seams	Raised, regulation-height seams
Design	Flat-sided (4-seam, 2-seam) or full round with markings (changeup, slider, regular)
Ages	6+
Warranty	45-day performance guarantee

Shipping & Returns

Free ground shipping on all orders over $49.

Shipping

In-stock items ship within 1–2 business days. You'll receive an order confirmation email right away, and a tracking number as soon as your order ships.

Free shipping applies to standard ground shipments to residential and commercial addresses in the continental US. It does not apply to oversized items requiring truck or freight delivery, or to international, Alaska, Hawaii, Puerto Rico, or APO/FPO orders. Some large items, like the Mastodon Batting Cage, are subject to shipping fees due to their size.

30-Day Returns & Cancellations

You have 30 days from the date you receive your order to start a return. Refunds are issued to the original payment method.

If a delivery is refused for any reason other than damage, a restocking fee will be charged and you'll be responsible for return shipping. Sports Attack orders may be subject to a 25% restocking fee.

Questions? Call (888) 466-0009 or email support@anytimebaseballsupply.com.

45-Day Performance Improvement Pledge

We're committed to your success on the field. If you don't see noticeable improvement in your skills within 45 days of using our training equipment, contact us and we'll work with you to find a solution — including helping you find a more suitable product for you or your team. If we can't find the right fit, return the product and we'll refund your money.

Damaged Items

Inspect your package before accepting delivery. If your item arrives damaged, take photos and email them to support@anytimebaseballsupply.com. We'll start the return process and provide a prepaid return label at no cost to you.

Why so many coaches and parents trust it

INSTANT FEEDBACK ON EVERY THROW. NO COACH REQUIRED.

5

Pitch types trained — 4 seam fastball, 2 seam fastball (sinker), changeup, curveball, and sliders.

2-Sided

2-sided cut off balls provide instant feedback.

HOW IT WORKS

45-Day

Performance guaranteed or your money back.

0

Coaches, cameras, or high tech equipment needed.

GREAT FOR CATCH PLAY WITH DAD

Why It Works

Most young pitchers have no idea what their pitch is actually doing — if the ball is spinning correctly, if their fingers are behind it, or if the rotation matches the pitch they're trying to throw. The ball comes off the hand in a flash, and unless you've got a high-speed camera, all you see is the result — strike or ball, in or out of the zone. Whatever went right or wrong is impossible to tell.

The RPM Spin Trainer changes that. When the release is off — fingers slipped, wrist angle wrong, thumb pressure off — you see it as wobble in the air. When the release is clean, the ball rotates smooth and tight. Your pitcher gets feedback on every throw, and his hand starts to learn what right feels like on its own.

This is how the best pitching programs in the country train — instant feedback, lots of reps, small adjustments. RPM brings the same approach to the backyard.

Who This Is For

Youth and travel ball pitchers (ages 8+) learning proper mechanics and building their first real pitch arsenal
Parents who want a way to actually help their kid practice at home — no coaching certification required
Pitching coaches and academies that need a simple, no-tech tool to show athletes what their release is doing
High school and college pitchers refining fastball spin, sharpening breaking balls, or adding a slider
Anyone training without access to a Rapsodo or TrackMan

How to Use Each RPM Spin Trainer

4-Seam Cutoff Ball

The 4-seam is the foundation of any pitcher's arsenal. It's the first pitch to learn and the most commonly used pitch. The flat sides give instant wobble feedback so your kid can see whether his fingers are behind the ball on every fastball and if their release point is consistent. Clean rotation = clean release. Wobble = something's off in the grip, wrist, or thumb pressure. The 4-seam can also be used for throwing curveballs.

Regulation Ball with 2 Stripes (4-seam orientation)

Use this ball in combination with the 4-seam cutoff ball. While the 4-seam cutoff ball is great for working on spin efficiency, we recommend using this one to get similar feedback while getting the feel of a real regulation sized ball. This ball can also be used for curveballs.

2-Seam Cutoff Ball

The 2-seam is a great secondary or tertiary pitch for players to learn. The flat sides line up with the train tracks of the seams so he can see the spin axis on sinkers and two-seamers — which is how you start adding real sink and run to a fastball instead of just changing the grip and hoping. This ball also works great with circle changeups which is the 2nd most important pitch for youth players to learn.

Changeup/2-Seam Marked Ball

This is a great ball to use in combination with the 2-seam cut off ball. You get good visual feedback while still getting the feel of a real baseball. For 2-seam fastballs, you want the black circle to point up above your right shoulder if you're right handed, and up and above your left shoulder if you're left handed. This ball can be used for 2-seams, sinkers, and changeups.

Key Features

FLAT-SIDED DESIGN

The 4-seam and 2-seam balls have flat sides that exaggerate wobble — so a bad release is impossible to miss.

GENUINE COWHIDE LEATHER

Same material and feel as a regulation game ball, so the grip and release transfer directly to real pitching.

VISIBLE SPIN AXIS

Bold graphics let your pitcher instantly see whether the spin is tight, tilted, or off.

5 PITCH VARIATIONS

Dedicated balls for 4-seam, 2-seam, curveball, changeup, and slider — build his full arsenal one pitch at a time.

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