We are thrilled to be able to introduce our new indestructible wall balls. In the gym, you’ve probably already noticed that most balls eventually become egg-shaped or open up at the seams, which can lead to a number of awkward situations and poorer workouts.Therefore the next step was to make a rubber ball: the inside of the ball is hollow, and the thickness of the rubber rim varies according to the weight of the ball. Don’t be intimidated by the mention of rubber – it is soft and will not knock you down on the floor even if you get hit in the face when your hands are too tired.