sport and gym floating floor acoustic vibration isolating u boat floor floaters Rubber Joist sound isolation clips * Made of a specially-formulated, vibration-isolating rubber. * Help improve transmission loss (isolation). * Use U-Boats with Sheet Blok to ensure good isolation. * Molded to fit around the edge of a 2'x4'.

Size: 2-1/8" wide x 1-1/2" high x 2" long Thickness: sides - 5/16"; base - 1/2" Color: Black A specially-formulated rubber compound for strength and durability. Improved transmission loss (or isolation). Low-frequency definition. Easy installation.