1. Made of stainless steel material, anti-rust.2. Suitable for 19mm diameter tube.3. Used widely in bathroom, bedroom and kitchen for bar or clothes hanging bar.4. A adjustable screw for tightening is included.5. Base Mounting Screws are not included here.Specification:Product Name: Wardrobe Rail SupportMain Color: Silver ToneMaterial: Stainless SteelWeight: 272gTotal Size: 21 x 42mm / 0.84-inch x 1.65-inch (H*Max.D)Center Hole Diameter: 19mm / 0.75-inchMounted Hole Dia.: 4.5mm / 0.18-inchMounted Hole Distance: 30mm / 1.2-inchPackage Content: 10pcs x Wardrobe Rail Support.