Material: This adjustable cam drain stopper brass and rubber as materials, which are wear resistant so that it can be reused for a long time Easy and quick to use, more spare parts are recommended under normal wear and tear. rubber plugs are neatly cut without burrs. Twist the rubber to lock it into the hole, turning it counterclockwise for easier removal. Insert the drain plug into the drain opening and turn the handle clockwise to tighten it into place,The handle snaps down to lock the plug in place,Lift the handle to unlock and turn the handle counterclockwise for easy removal,Easily and reliably plugs boat drain pipes Material: rubber Color as shown Package Contents: 1 x boat drain plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.