This ice hockey puck is made of PU material. They are made according to the strictest standards of hardness, weight, flatness and surface quality. Features anti-slip texture, these pucks are for accurate shots and passes. Great sports supplies for athletes and beginners.Features-Color:Black-Material:PU-Size:7.50X7.50X2.50cm/2.95X2.95X0.98in-Children who play hockey puck have a stronger sense of competition, and they are more willing to face and solve problems when they're suffering setbacks.-Fine and sturdy material, very durable. Lightweight, center molded for strict uniformity.-High hardness, dense and clear texture, good resilience, enhancing the adhesion between the roller hockey stick and the puck.-The puck is great for indoor and outdoor play on smooth surfaces, has great durability and can slide easily and smoothly across multiple surfaces.-Fine workmanship and good material, we offer you the fine process and reasonable price.Packing list6 x Hockey Pucks