The Black Widow Spare Ball by Hammer is a 13lb ten-pin bowling ball designed for two-handed players. Made of polyester material with a polished finish in a sleek gray color, this bowling ball features an asymmetrical core for added stability and control. Ideal for serious bowling enthusiasts, this ball offers precision and performance on the lanes, making it a valuable addition to any player's arsenal. I had this drilled for 2 hander but never used it so it is like new.