TRX SLAM BALLS are super-strong balls designed primarily for throwing exercises. The outer shell of the balls is made of a thick, grippy rubber compound that really stands up to whatever you want to do with it.The combination of the outer shell and the special filling means that the ball doesn't bounce off the floor or wall during slam and throwing exercises, but stays right in place.The TRX SLAM BALLS are available in many different weights, so you can be supported at your fitness level and make optimal progress.PRODUCT INFORMATIONAvailable in 2.7 kg, 3.6 kg, 4.5 kg, 6.8 kg, 9.1 kg, 11.3 kg, 13.6 kg, 18.1 kg, 22.7 kgGrip surfaceSpecial fillingNo bouncing ballOne-year guarantee