US Games BSN Sports Spots Prism (Pack of 6), 9-Feet Soft, latex-free plastic construction is flexible and sticky on hard floor surfaces Different-colored circles can be used to mark key areas of the room or an obstacle course 9 in. diameter and bright color of each circle make them stand out for easy visibility Non-slip surface helps prevent students from slipping when stepping on the spots Prism packs include either 1 or 2 of each color:Blue, Green, Orange, Purple, Red and Yellow