Vulcanized rubber construction with uniform density. Features NHL-standard hardness (90-95 durometer), precision-molded flat surfaces, and consistent rebound elasticity. Solid one-piece design ensures durability under extreme play conditions.||NHL OFFICIAL SIZE: Identical to pro-level pucks (3\×1\/6oz). Help you to find the feeling on the real game, and enjoy the competition. Precision-balanced for authentic stick handling.||FRICTION DESIGN: Thanks to its friction-enhancing dimple pattern and strict quality control, this puck ensures superior handling for quicker passes and more accurate shots by every player.||PROVEN PERFORMANCE BENEFITS: The surrounding patterned increases 37% stick grip. Balanced 6oz construction improves passing accuracy. Helps you to make steady, powerful and accurate shots and quick passing. Laboratory-verified rebound consistency (±3% variance)||PRIMARY APPLICATIONS: Professional Leagues/Competitive Training: NHL-standard rinks (61×26m, -9°C ice surface) for official games or other competition, suitable for Canada, America and other internation arenas.