Overview

The Contour Power Grips Thumb Sleeve – Round Tapered is a pre-formed thumb insert built for bowlers who want a clean, consistent release with minimal customization. Designed with a precision-molded tapered inner hole, this insert helps guide the thumb naturally out of the ball for improved control and repeatability.

Made from a softer vinyl material, this thumb sleeve provides a comfortable, secure feel compared to traditional urethane inserts. Its round, tapered design makes it an excellent choice for bowlers who prefer a smooth release without added grip features like power nubs.

Features

• Pre-Formed Design - Ready-to-install insert reduces the need for extensive drilling and shaping
• Tapered Inner Hole - Gradually narrows toward the bottom to promote a smooth, natural thumb exit
• Comfortable Feel - Softer vinyl construction provides a secure, consistent grip without being overly aggressive
• Easy to Customize - Can be quickly trimmed with a utility knife for a clean, precise fit
• Smooth Release Design - Round shape without added grip features for bowlers who prefer a cleaner thumb exit

Product Specs