Description: Material: Plastic Corrosion resistant and durable Mount from inside transom Snap Style Plug: Fully adjustable, will not leak or jar loose The drain plug is 75 diameter and fits a 3" diameter drain Specification: Length: Approx. 5 inch / 130mm Width: Approx. 5 inch / 130mm Height? Approx. 2 inch / 50mm Package Includes: 1 Piece Boat Drain Plug