Soft-Shell Weighted Ball Set – 6-Ball Pitching Velocity Trainer (3.5–32 oz)

Train smarter. Throw harder. Built for pitchers who want real velocity gains.

The Soft-Shell Weighted Ball Set is the weighted ball training tool we use every day at our facility to build arm speed, mechanics, and durability in pitchers from high school through pro. Six weighted balls in graduated weights from 3.5 oz to 32 oz let you train the full kinetic chain, from connection drills to max-intent throws, without the wear and tear of a regulation baseball.

Choose your finish:

• Seams. Engraved seams on the 14, 7, 5, and 3.5 oz balls so your grip and release mirror a real baseball. Use it for intent throws, command work, and bullpens.
• Smooth. No engraved seams on any ball. Takes grip out of the equation for connection drills, scap loads, drop steps, walking windups, and heavy-ball strength work.

Many of our pitchers run both: smooth for connection and strength, seamed for intent-level throws where grip and release matter.

Why pitchers pick this set:

• Build real velocity. Progressive overload protocol used in pro and college programs to develop arm speed.
• Soft-shell, no sting. Train indoors, against a wall, or into a sock net without damaging your facility or your hand.
• Improve mechanics and arm health. Heavier balls reinforce connection and intent. Lighter balls accelerate arm speed and clean mechanics.
• Coach-designed. Built by Coach Grady and used daily in our facility.

What's included:

• 6 weighted balls: 3.5, 5, 7, 14, 21, 32 oz
• Seams option: engraved seams on the 3.5, 5, 7, and 14 oz balls. Smooth option: no seams on any ball
• Matte finish for grip and durability
• Drawstring carrying bag
• Inflation-needle compatible (air nozzle on every ball)

Who it's for: Baseball and softball pitchers (ages 13+), coaches, and training facilities looking for a complete, indoor-safe weighted-ball system.

Built by Coach Grady. 20 years coaching pitchers. Hundreds advanced to college baseball. 10 drafted by MLB organizations. This is the set we put in our own pitchers' hands.

Pair it with a real plan. Weighted balls are a tool, not a program. Coach Grady's Velocity Improvement Protocol is the 4-week off-season plan we put our pitchers on. Daily breakdowns, drill library, and a velocity tracker. Instant download.

Specifications

• Number of balls: 6
• Weights: 3.5, 5, 7, 14, 21, 32 oz
• Finish: Seams option has engraved seams on 3.5, 5, 7, 14 oz and matte smooth 21 and 32 oz. Smooth option is matte smooth on all six
• Material: Soft-shell PVC, iron-sand fill
• Sport: Baseball / Softball
• Color: Multicolor (color-coded by weight)

Frequently asked questions

What ages is this safe for?
We recommend ages 13 and up. Younger arms aren't ready for heavy-ball overload work. For developing players, start with the lightest balls and follow a structured program.

Will heavier balls make me lose arm speed?
No, when used inside a proper protocol. The whole point of overload is to train the body to handle force, then overspeed (lighter balls) teaches the nervous system to throw faster. Skipping the plan is what gets pitchers hurt, not the balls.

Can I throw these into a sock net or off a wall?
Yes. The soft-shell PVC build is designed for indoor training. They take a beating without busting up your facility.

Seams or Smooth?
Pick Seams for intent throws, command work, and bullpens where grip and release matter. Pick Smooth for connection drills and pure heavy-ball work where grip isn't the variable.

Is this for softball pitchers too?
Yes. Same protocol applies. Softball coaches we work with use the full set.