Application: Fit for boat, marine, yacht and raft with 25mm thread drain bung Material: Made of high quality and durable marine grade stabilised Nylon plastic construction Function: Rubber gasket on each plug can prevent unwanted water from entering your boat Perfect Seal: top seepage and drain the water from the inner hull of your boat, keep the seal under high vibration conditions Easy to use: Just screw it into the sleeve directly, a great accessory for your boat transoms, fish wells, ice chests, yacht and more Specification: Material: Nylon Size Chart: 31x54mm/1.22x2.13inch 25mm/0.98inch thread drain bung Package Includes: 1 Piece Boat Bung Drain Plug 2 Piece Screw(2 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!