ITEM NAME:6 Pieces Durable Air Plug Cap Replacement For Inflatable Boat Mattress Description: High quality plastic material, sturdy, anti-corrosion and durable. Fits most inflatable boat, kayak, raft, rubber dinghy, etc. It will fit into a hole that is about 7/8" in diameter, and has a threaded cap. The valve cap design ensures anti-leak inflation. Easy to install and replace. Specification: Material: Plastic Color: Black Height: Approx. 50mm / 1.97 inch Thread Diameter: Approx. 22 mm / 0.86 inch Package Includes: 6 Pieces Replacement Air Valve for Inflatable Boat SKU: ALU0035560319494719.Fits most inflatable boat, kayak, raft, rubber dinghy, etc. The valve cap design ensures anti-leak inflation. High quality plastic material, sturdy, anti-corrosion and durable. Easy to install and replace.