Everyone loves this one, with its unique twist.... It doesn't just test your strength, it can test your speed as well. It doesn't just have velcro strips it also has a pop up basket ball net at the end which you can race to dunk. The bungee straps come in different strengths, depending on age group and the Velcro belt is adjustable to suit each users size. Great for competitions or just a bit of fun, at a birthday party or summer fate.