Size: Mounting hole diameter: 4 mm; dimensions: 4 x 5 cm (H x D), suitable for pipes max. diameter: 25 mm, depth: 3.6 cm.High-quality material: The cupboard rods are made of stainless steel, durable and rust-resistant. Beautiful, matt black, modern design, easy to combine, adds a sophisticated feel to any room.Versatility: Bracket for attaching a tube lever to the bracket, for hanging clothes, curtains etc. Ideal for home, hotel as a hanging storage area for organising everything, perfect for a bedroom, living room, dining room, office, wardrobe or kitchen.Closed design: flange curtain rod holders are O-shaped base design, which will not fall down accidentally after installation. Adjustable screws on the side to tighten to the rod to prevent the rod from slipping.Stable and easy installation - supplied with mounting hardware. Each bracket has 3 holes, and the side that touches the wall is flat, making it more stable and solid.