Nylon Body Compression HandleCompression handles reduce and eliminate noise and rattle from hatches when the boat is underway. The handle uses acompressed gasket to create a water-tight seal for compartments or hatches.Outer Diameter: 3"Cut-Out:2-1/2"Surface Depth: 1/8" - 3/4"Shaft Length: 1-9/16 - 1-3/4"