These limited edition bands are official licensed product with the NBA. Each band is unique with slightly different red and blue swirl patterns. NBA players will wear their very own during the NBA All-Star 2011. Made of 100% Surgical Grade Silicone with a stretch feature that extends easily over your hand, you'll love the style and comfort it provides. Complete with two Power Balance holograms, this sporty and fun band goes with everything. Find your size and see where the day takes you. XS (6.3 in or 16 cm) S (6.9 in or 17.5 cm) M (7.5 in or 19 cm) L (8.1 in or 20.5 cm) XL (8.7 in or 22 cm)