Description:1.USAGE. These glides are great for use on wooden furniture legs. With moisture-proof and anti-skid effect.2.MATERIAL. Made of plastic and metal material, lasts far longer than stick-on pads and easier replacement.3.ADVANTAGE. Nail into legs on tables or chairs,help furniture move smoothly over flooring and protect hard floor surfaces from scratching. Specification:Product Name: Furniture Feet Glide NailColor: WhiteMaterial: Plastic, MetalShape: High Bottom CircleHead Size: 14 x 9mm / 0.55 x 0.35inch(D*H)Pin Length: 12mm / 0.47inchTotal Length: 21mm / 0.83inchPackage Content: 20pcs x Furniture Feet Glide Nail Installation Steps:1.First drill a small hole in the chair leg.2.Then hammer the nail into it with a hammer.3.This method can avoid excessive force leads to bending of the nail.