Vise Grip Dual Color Bowling Easy Urethane Thumb Slugs ? Durable Urethane Thumb Insert Upgrade your bowling thumb grip with the Vise Grip Dual Color Easy Urethane Thumb Slug. Crafted from 100% urethane, this slug offers a comfortable and reliable fit, helping you maintain consistent control and release. Measuring 2 5/8? in length with a hardness rating of 75, this slug provides a balanced combination of durability and grip softness. Sized at 1 1/4?, it fits most standard thumb holes for easy installation and replacement. The dual-color design adds a sleek, stylish look to your ball. Key Features: 100% Urethane Construction: Durable material that provides comfort and long-lasting use Slug Length: 2 5/8? for optimal thumb coverage Hardness: 75, offering a good balance of firmness and flexibility Size: 1 1/4? standard size fits most thumb holes Dual Color: Stylish dual-tone design for a modern look Specifications: Brand: Vise Inserts Material: Urethane Length: 2 5/8? Hardness: 75 Size: 1 1/4? Item Weight: 1.5 Pounds Package Dimensions: 2 x 1 x 1 inches