Check Size First: Ceiling mount closet rod holders can fix round rods up to 1 inch/25mm in diameter. The loading capacity is up to 20 pounds for per bracket. Quality Materials: Curtain rod socket constructed of aluminum alloy w, , anti-rust and anti-. Although you put it in a humid place, it still maintains wonderful flexibility over time. Easy To Install: First Drill Holes On The Mounting . Secondly, Knock The Plastic Expansion Pipes Into The Hole And Tighten The Bottom Plate With The Screw. Finally, Insert The Rod To Be Supported Into The Rod Holder And Make Sure It Is On The Same Level. A wide range of applications: Flange rod brackets is suitable for closet storage rod, ceiling mount curtain rod, shower rod, clothes rod, hanging rod and etc. Colour: black Material: Aluminum alloy Size: Total length 11.8cm, width 6.5cm Package Contents: 16 x Curtain Brackets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.