The Weighted Balls Carlos Used in Pro Training
Weighted-ball training is standard at the professional level — arm-strength development, mechanics refinement, grip feel work. Kachi's weighted training balls are pro-spec: multiple weight variants in a matched set, consistent diameter for realistic grip feel, durable construction that survives thousands of throws.
Set Includes
- Weights: 4 oz, 5 oz, 6 oz, 7 oz, 9 oz, 11 oz (6-ball set)
- Diameter: Standard baseball diameter across all weights
- Material: Synthetic leather covering, high-density core
- Color-coded: Each weight is a different color for easy identification
From Carlos
"Weighted-ball training was a key part of my development as a professional player. These tools help build the strength and coordination needed for elite performance."
A note: Weighted ball training should be progressed carefully. Consult a qualified pitching coach before starting a weighted-ball program, especially with youth players. Kachi does not recommend weighted-ball training for players under age 13.
Lifetime craftsmanship guarantee · Free US shipping over $150 · Shipped from Miami · Questions: hello@kachigloves.com
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CARE & MAINTENANCE
To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.
SHIPPING & RETURNS
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Need to return something? Just let us know.
Lifetime · Not 1 Year
Lifetime Craftsmanship Guarantee
Every Kachi glove is repaired or replaced for the life of the player. Stitching, lacing, leather defects — covered for as long as you play. The industry standard is 12 months. Ours doesn't expire. Read the warranty →
Free Embroidery
11 Heritage Flags
Latin & Caribbean baseball nations. No upcharge.
Ships From
Miami, USA
Customs ship in 6–8 weeks. Standards in 3–5 days.
Built With
Japanese Kip
30% lighter, ~2× stronger than steerhide.
Designed by pitchers. Tested in Miami.
Kachi was started by two former MLB pitchers — Julio Teherán, two-time All-Star with six consecutive Opening Day starts for the Atlanta Braves (tied with Warren Spahn), and Carlos Castillo, who pitched for the White Sox and Red Sox across an 18-season career that took him through Japan’s NPB and Taiwan’s CPBL — the leagues where Japanese Kip leather is the professional standard.
Every Kachi pattern is field-tested at Kachi Baseball, Carlos’s training academy in Miami, before it goes into production. Built with Japanese Kip — 30% lighter and roughly 2× stronger than steerhide. Free heritage-flag embroidery for every Latin & Caribbean baseball nation. Lifetime craftsmanship guarantee.
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