Experience effortless curtain installation without the need for tools, drilling, measuring, or leveling. Our innovative design ensures there are no moving parts and no holes in your walls. Simply slide The Curtain Shim between your properly installed window blinds and window frame for a quick and damage-free installation. (1/8"-1/4" space between the window frame and blinds is recomended. The Curtain Shim works best with windows that have a jamb depth of at least 3"). No blinds? No problem! Follow the manufacturer's instructions to use a spring-loaded tension rod and slide The Curtain Shim snugly between the tension rod and window frame. Place the rod with your curtains onto The Curtain Shim and Voila! (This works great for two regular pannels and curtain rod, approx. 3 lbs) For those seeking a more permanent installation, The Curtain Shim can be easily mounted with the included screw, without causing any damage to your walls or window moulding. The Curtain Shim measures 7" in length, 1" in width, and 1 1/2" in height. It's only available in white, but it can be easily colored to match your curtain rod, making the Shim virtually invisible. One pair of The Curtains Shims will hold approximately 10 lbs. We take pride in our commitment to sustainability. All components of our product and packaging are recyclable or compostable, including the shipping envelope/box and label. By choosing our product, you're making an environmentally friendly choice.