Nail-on chair glides are a simple but tough solution as a floor protector for your furniture. These easy to install glides are designed with a nail molded into the head of the glide itself. Each nail is constructed durable enough to allow installation without the hassle of a bending nail. After installing your nail-on glides you will find they allow your furniture to slide smoothly over most flooring types and have a long life span. Ideally used on wood furniture. Size refers to diameter of base.