2PCS Hang Double Pole Holders Curtain Rod Supports Brackets Into Window Frame Feature: These unique easy-to-install curtain rod brackets can be installed in literally seconds, as just tap them right into your window frame. Simply place it on the top corners of your window frame and tap it in with a hammer. It will make two tiny holes the size of a thumb-tack, and by using the leverage of a bar that goes alongside the edge of the frame, it safely hold the curtain bar up with ease. The Hang curtain rod holders are able to hold up to 20 lbs of weight without damaging your walls, and won't require you to level or adjust anything after installation as it'll always be as level as your window frame. Material: A3 iron plate Package included: 2* Curtain Rod Brackets Notes: 1. Please allow minor errors due to manual measurement. 2. The colors may have difference due to the different display, please understand.