CHALLENGES STUDENT TO STAY ACTIVE FOR AN EXTENDED AMOUNT OF TIME! These tops motivate and stimulate participants to perform tasks within a designated time frame. Just spin the Timer Top and perform tasks, skills, and challenges until the top stops spinning. The game may focus on a variety of skilled tasks including how many tasks a person can do before the top stops spinning, how long one can perform a challenge while the top is spinning, etc. Set includes 12 timer tops, 3 each, in translucent colors—red, blue, green, and purple. Each top measures 3 1/2" x 1 1/4".