Bruk 19 MM Felt Pad with Nail for Furniture Floor Scrath Protection Pack of 24 (Size: 19 MM) Felt Pads nail glides quite and gentle on floors due to very high quality soft wool felt easy sliding floor protection knock inn furniture chair table leg. These nail on felt pads make for the perfect protector agains scratches on your floor. They nail easily into your furniture for long lasting protection against scratches. You may need to drill slightly smaller size hole than the nail glide's nail diameter into the leg for very hard wooden legs to avoid splitting the wooden leg, then hammer the glide securely into hole. Nail on chair glides are available in three different sizes.