Cramer sports teips are made of high quality cotton. The purpose of sports tattooing is: to protect and support a certain joint or to prevent a certain movement. Cramer is a supportive, stabilizing sports teip used for example to limit hyperflexia and hyperextension, thus providing a stabilizing effect on the joints. Sports stretching during workouts or games helps prevent sprains and other possible injuries, providing support for joints and muscles. The sports putty also helps stabilize the joints during recovery.