Premium quality bumper billiard balls made of polyester resin. Bumper pool balls measure 2-1/8 Regaltiaon Size Set includes 10 balls (4 red, 4 white, and 2 spotted balls). Each balls are produced to the most exacting tolerances,meeting all professional quality benchmarks for size, roundness, density, balance, weight, color, and hardness. ensuring superior playability and durability. Collapsar bumper pool ball set features a hardened fade-resistant Luster Technology coating for superior scratch resistance and long color life. 100% satisfaction guaranteed. Size 2-1/8 Color Red, White, Red & White (spotted) Brand Name Collapsar Sport Type Bumper Pool Unit Count 10.0 Count Item Weight 1.7 Kilograms Manufacturer Collapsar Item Diameter 2.13 Inches Material Type Polyester Resin Number of Items 12 Construction Type molded Age Range Description Adult Recommended Uses For Product 'Playing Bumper Pool', 'Practice for Bumper Pool'