Features: Secure your window treatments effortlessly with these strong iron roller shade spring parts, featuring a unique hook design to prevent detachment and secure long lasting stability for blinds and shades. Engineered with accuracy tailored spring clips and a reinforced dovetails joint, this 4 piece set offer adjustable lift speed control and stable attachment for smooth roller shade operate . Ideal for homeowners, landlords, and enthusiasts seeking professional hardware to maintain or repair apartment blinds, shades, and sliding door curtain systems. Perfect for daily use in apartments, residential homes, or office spaces requiring sturdy window hardware accessories to fix loose spring or upgrade existing curtain/shade mechanisms. Simplify window treatments maintenance with these rust resistant iron spring, designed to enhances functionality while seamlessly integrating with standard roller shade and blind repair projects. Specifications: Component : Iron Process: accuracy manufacturing, strong and rust-proof Size: about 15.5x10x2CM/6.1x3.94x0.79inch Package Includes: 4xRoller Shade Spring Clip note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.