Description: Made of high quality PVC material, durable and heavy duty. Lightweight with a pull cord, easy to use. This item is designed to help keep water from entering to boat. Useful replacements for your boats. Fits for most kayaks, inflatable boats, river rafts and so on. Specification: Material: PVC Size:Approx.85 x 45mm/3.3 x 1.8inch Bottom Inner Diameter: Approx 3.7 cm / 1.5 inch Color: Black Package Includes: 1 Piece Boat Scupper Valve Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!