Adjustable Size: Length of the curtain pole brackets can be adjusted up to 3 cm, works with curtain rods up to 1-inch in diameter and can be extended 3.5 to 4.7 inches (9 cm to 12 cm) from the wallSupreme Quality Material: Sturdy metal curtain rail brackets are made of high-quality iron and sprayed with elegant paint on the exposed parts to prevent rust. Support heavier loads and are designed to resist wear and tearWide Applications: Curtain brackets for poles are suitable for door curtains, shower curtains, drapes, layering or extending over blinds. They can be used in new installations or as replacement curtain brackets for existing rodsSimple Design: These curtain rod brackets have a simple design, ideal for curtain rods and draperies. Their well-designed exterior makes them suitable for a variety of home decor needsNote: Maximum end-to-end Length of the Brackets as measured from the wall is 117mm. The brackets are NOT useful for rod with diameter bigger than 25.3mm.