Usage Tips:Features: PACKAGE CONTENTYou will receive 4pcs pleated curtain L-shaped bracket fixing accessories, enough quantity for your daily use and replacement needs. DURABLE MATERIALThe roller blind clamp supports are made of plastic and metal material, safe and eco-friendly, durable and sturdy, hight strength, wear-resistant, not easy to damage, can be used for long time. NO DRILLINGHang the clamp bracket on the window frame, no need to drill holes to install the roller blinds, no damage to your windows, easy and convenient to install. WIDE APPLICATIONUniversal, for windows with a maximum window thickness of 20 mm, for all wooden and plastic windows with seals. Can be freely adjusted according to your use. VARIOUS OCCAIONSModern and stylish, suitable for indoors and outdoors, home, livng room, bedroom, office, hotel, classroom, etc, great replacement part for your old or broken roller blind support. How to install: 1. Hang the clamp bracket on the top of the window frame and clamp it slowly, because you may need to correct the position of the folding shutter. 2. Rope fixation, clamp the clamping bracket of the lower layer on the window frame at the correct position. This step should not be too tight. 3. Adjust and fix the lower clamp, make the lower rope perpendicular to the upper rope, and then perform the same operation for the clamps on both sides. 4. After adjustment, close the combined fixture tightly, and a compelete shutter is fine. You will receive 4pcs pleated curtain L-shaped bracket fixing accessories. Made of plastic and metal material, safe and eco-friendly, durable and sturdy, hight strength, wear-resistant, not easy to damage, can be used for long time. Universal, for windows with a maximum window thickness of 20 mm, for all wooden and plastic windows with seals. Specification: Material: Plastic Color: White Size(LxWxH): About 3x1.8x2cm/1.18x0.71x0.79inch Quantity: 4pcs/pack Package includes: 4pcs x Clamp Support Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.