Features: Made of 316 stainless steel, maximum corrosion resistance and durability Screw-on drain plug with an O-ring washer for positive sealing. Retention system prevents plug from getting lost when removed. Mounts in 1/25mm diameter hole in case. Plugs prevent intrusion of water in the kayak and will keep you dry on the water. Great accessories for boat transoms, fish wells, coolers, yachts and more. Features: Seal Ring Color: OrangeBlueBlack Material: 316 Stainless Steel Pack Size: 6 ,5 * 4 * 4 cm Package weight: 100g Package list: 1 * drain plug 2 * screw