Check the listing for details. Tenth Frame Bowling Ball Thumb Plug Dams Round. Color: White, Condition: New. Listed at 24.44 USD. Tenth Frame Thumb Plug Dams Round The Tenth Frame Thumb Plug Dams offer unmatched value, giving you the same performance as the leading brands at a fraction of the cost! Made from premium closed-cell foam, these plug dams ensure reliable and consistent results for all your bowling ball plugging needs. With a strong adhesive that prevents leaks, these plug dams are perfect for use on all coverstocks, keeping your work clean and precise. Each 3/8" tall piece contains five nested sizes, making it versatile and convenient for various thumb hole dimensions. Say goodbye to unnecessary costs and hello to quality performance. Whether you're working on a professional bowling ball or performing maintenance at home, the Tenth Frame Thumb Plug Dams deliver superior results every time. With a pack of 120 pieces, you’ll always have the right size on hand to get the job done efficiently. Performs as well as the leading brands Made from high-quality closed-cell foam Strong adhesive prevents unwanted leaks Five nested sizes per piece Works on all coverstocks Material: Closed-cell foam Quantity: 120 pieces (24 sets of 5 sizes) Sizes (Interior Dimensions): 2" diameter 1 11/16" diameter 1 3/8" diameter 1 1/16" diameter 3/4" diameter