The product is a 15.1 lb Brunswick Prism Warp ten-pin bowling ball, featuring an asymmetrical core made of reactive resin material. It comes in a multicolor design with a matte finish, perfect for heavy oil lane conditions. The ball is undrilled, allowing for customization based on the player's preference. With high performance capabilities, this bowling ball is ideal for competitive play and offers a smooth and consistent roll on the lanes. This Brunswick Prism Warp model provides top-notch quality and design for serious bowling enthusiasts. Top weight is 3.3 ounces and the mass bias is in line with the cg and pin.