Description High quality felt strap button washers prevent metal-to-metal contact perfectly protect your precious drum cymbals. Lightweight perfect round shape design. Improve your drum cymbal sound and performance. Feature - Color: Black - Material: cotton - Size: 5.1x5.1x3.1cm - Prevent fastened strap buttons from harming an instrument s finish by providing a strong safe buffer - Providing great protection for your cymbal - Made of cotton material durable to use - Made with fine craftsmanship and durable. - A great gift for your friend and family.