UltraFoam NoBounceBalls - Swirl Design, 4"

I was expecting that a no-bounce ball wouldn't bounce, like a dead-blow hammer or other non-bouncing materials. These type of balls do exist, by the way. However, this particular product should better be called low-bounce balls. They do attenuate quickly, rebounding with only about 10-15% of their initial momentum, which lets the stop after about 2-3 small bounces. The thing that bugged me the most about them is their size . You can see in the photo that they read "100mm" or 10cm in diameter - this makes them too big to use like a rubber bouncy ball, but too small to use for any other sports or activities.