Check the listing for details. Vise Dual Easy 100% Urethane Bowling Ball Thumb Slug. Color: Black/White, Blue/Pink, Green/Orange, Neon/Red, Purple/Yellow, Condition: New. Listed at 11.21 USD. Vise Dual Easy 100% Urethane Thumb Slug Experience the convenience of dual-color thumb slugs with the Vise Dual Easy 100% Urethane Thumb Slug, designed to streamline your equipment needs. Quick and Clean Release Carve with ease and enjoy a quick, clean release with this innovative thumb slug. The ergonomic design ensures a smooth experience on the lanes. 100% Urethane Construction Crafted with precision, this thumb slug is made from 100% urethane, providing durability and reliability for every bowling session. Optimal Dimensions Length: 2 5/8" Hardness: 75 Make the most out of your bowling game with the Vise Dual Easy 100% Urethane Thumb Slug. Order yours today and experience the difference!