Master Surface Master Cup Soft Knob 1 ball rollers it's a must

it's a must

Use it after every shot to keep your bowling ball feeling tacky and keep a strong backend reaction

quick & convenient solution for bowlers who suffer from an inconsistent release due to a thumb that shrinks and/or swells

OnTheBallBowling NFL Houston Texans Bowling Pin

This sporty red and black hybrid from MOTIV® is built to handle sharp turns in high traffic situations

Master Surface Master Cup Soft Knob 1 ball rollers it's a mustA heavy duty ABS plastic cup with a molded 3 8" metal shaft with removable soft touch rubber knob. Has velcro to hold a 6" sanding pad of your choice. Plus can be used by hand or can be attached to a hand drill.