Product Details

PB Extreme Jam-Ball Medicine Balls are great for slams or exercises when you don't want the ball to bounce. They are durable and soft medicine balls that are sand-filled, and feel like they're filled with gel.

Features:

Navy blue in color

Textured and soft shell allows for easy catching, gripping and throwing.

The medicine balls are filled with sand, and feel like they are gel filled.

Great for exercises when you don't want the ball to bounce (like slams).

PB Extreme Jam Medicine Balls work well with medicine ball rebounders

2 year warranty.

Diameters:

4lb - 30lb = 9"

40lb - 50lb = 11"

60lb - 70lb = 12.6"

80lb - 100lb = 14"

Reviews

9 Reviews

Broken Jam Balls
3

Posted by Nick Keenan on Aug 20th 2018

While the jam balls have been very effective in our speed and strength program, 3 out of the 4 25lb balls broke 14 months after they were purchased. The manufacturer has only a year warranty. With them being $45 a piece, they don't seem to be worth the money if they need to be replaced every year.

Great Workout Tool
5

Posted by Montrell W on Aug 20th 2018

I have incorporated this ball into my personal workouts as well as with my clients and it has proved to be a useful tool.

SLAM
5

Posted by Thomas F on Aug 20th 2018

love that they don't bounce, extra work to pick it up.

Best all around workout!!
5

Posted by Mkr on Aug 20th 2018

"I've found slammer ball workouts to be exhausting, And just about the most effective core-strengthening exercise I've done. Similar to kettle bells, but Unlike kettle bells there's less momentum to help You. I'm a very fit 220lbs guy, after a few minutes with A 30lbs ball, I'm winded!"

Previous

Videos

Jam Ball Exercises

Great training exercises for you or your client. To become yo...