Rubber Feet can be used for door stops, furniture feet, drawer stops, counter-top appliances, air compressors, power generators, tools, automobiles, and kitchen appliances. Can also be used on musical equipment like bass guitars, speakers, amps, etc. They also provides benefits like: stopping equipment from sliding or moving, and restricts passing vibration from equipment. Rubber feet allows for spacing between the bottom of equipment and the ground or floor.The built-In metal washer helps prevent break-throughs, and also prevents metal-to-metal or surface-to-surface contact.