The quality of the item is very good. Materials are something that looks as though it will last for several years (good).The negative side is that the diameter of the base piece and hole is about 1/4 inch smaller than the area needed to cover. Without a modification; this would not work. With a modification - it will be fine.
Ideal for boat transoms, fish wells, ice chests and more
Retention system keeps plug from getting lost when removed
Features an o-ring for positive sealing Fine threads maintain sealing under high vibration conditions