Designed to glide smoothly over just about any flat surface, this sturdy, all-purpose hockey puck can be used in informal pick-up games in the backyard or on the street, as well as in more organized competition in the roller hockey rink. Equipped with three abrasion-resistant rolling balls that reduce friction as it moves, the Roll-a-Puck is a good choice for games played on rougher surfaces both indoors and outdoors, including asphalt and concrete. The durable plastic puck is an officially licensed product of the National Hockey League. --Chris Burns