Case of: 20Colors: black, yellow, blue, orangeMaterials: plastic, foamGreat for sports training and fitness exercise, this Jump Rope with Counter features a counter on the handle that counts jumping times and comfortable, easy to hold rotator swivel action non-slip handles that allow you to jump smoothly. Rope length can be adjusted according to your height. No batteries required. Counter has a 0-999 setting range and an easy reset button. Comes in assorted colors. Comes packaged in a blister pack.