Ironcompany.com D-Ball 10 inch USA-Made Slam Ball - Non Bounce Medicine Ball - Yellow Color: Yellow. 10.6" Diameter (same size for all weights). MADE IN THE USA 3/8" PVC wall thickness. Soft for firm hold. Non-tacky feel. Non-bouncing. Raised dimple texture for sure grip. Raised rib rings for additional ease of grip. For use with wall ball training, slam ball exercises, throw downs, sports motion training. Available in 12, 15, 16, 18, 20, 25, 30, 35, 36, 40, 45, 50, 60, 65, 70, 75, 80, 90, 100, 120 lbs.