This is a set of 8 black round case feet. They are made out of very durable hard rubber and have a self-adhesive side so you will not have to glue it on. It is easy to peel and sticks right onto your case or laptop. The base/sticker side of the foot is 1.25" in diameter and about 0.25" tall. They can also be used on any items where you want to prevent the bottom surface from scratching. They also work well as motherboard stand-offs. The sticker is made by Sony. If needed, glue can be used but is probably not needed.