Core: Centrum (14#-16#)

Wheel Bearings For Smoother Roll

0 (Least) on a scale of 1-30 Least-Most

Color: Purple/Blue/Black All colors do vary somewhat from the picture shown

Dimensions: 11

Hammer Black Widow Spare Bowling Ball Blue Orange Smoke $25-$50 Core: Centrum (14#-16#)Now Hammerheads have a performance polyester option to put in their bags. The Widow Spare, featuring the legendary gas mask core, is perfect for hammering spares, or taming tough conditions when other balls hook too much. Color: Blue Orange Smoke All colors do vary somewhat from the picture shown. Core: Gas Mask Coverstock: Polyester Finish: 800 1000 2000 Abralon Polished w Powerhouse Factory Finish Polish RG: 2. 48 (15# ball) Differential: 0. 058