1 Easy Adjustment: This drain plug can easily be installed into a 25mm hole in the hull of a boat, features an adjustable twist mechanism that ensures the plug will not leak or loosen even with vibration. 2 Secure Sealing: Equipped with threads and O ring, this plug provides a waterproof fit and maintains a secure seal even in vibrating conditions, useful for draining water. 3 Premium Material: This boat drain plug is made from high strength ABS plastic material, providing maximum wear resistance and durability for long lasting use. 4 Wide Application: Designed with a fine workmanship and simple installation, this drain plug is suitable for sterns, fish wells, freezers, and more. 5 Loss Prevention: The spiral drain plug has an O ring gasket for front sealing. The fixing system prevents the plug from being lost during disassembly.

What's in the box
1 x Drain Plug