The replacement washer set includes 4 white washers and 4 grey washers, made from stainless steel with a plastic shell, 2.625-inch in diameter, weighing 1.2 ounces, compatible with most washer target. The washer is used for replacing old or missing washers, waterproof and weatherproof, and you can use them in any weather, bottle opener built into the center of each washer.