No Drill No Tools Blinds: Letau patented technology No Tools-No Drill system allow it no need to drill any holes on your window frame, great for Renter, Landlord, and Home Buyer. Easy to Install in 45 seconds with no tools-no drill, screws, or brackets. And it can afford maximum 35kg. Fit All Kinds of Walls, like woodiness metope, tile marble, concrete wall. Innovation Cordless Design: Built-in the robust constant force spring-loaded mechanism, smooth and quiet. The innovation cordless design provides a clean, tangle-free look to the window. Safer for children and pets. Easy to raise up or lower down evenly to gently filter sunlight and stay balanced automatically at whatever position you stop. Please follow the below steps to submit the order: STEP 1, Select your color. STEP 2: Hit the "customize now" button on the right side to fill out your customize dimensions. STEP 3: Choose inside or outside mount. STEP 4: Choose the width and height size,For an inside mount, give us the exact inside opening size of window, we will take a 3/8" deduction based on opening size. you need at least 1-3/4"depth for inside mount. For an outside mount. the proposed shade size is 3-5inch wider and higher than window frame size so it fully cover the window and frame. STEP 5: Choose the Roman shade or Top down bottom up Style. STEP 6: Add to Chart. The bamboo shades are made of selected natural bamboo,We have 20 years of experience manufacturing and assembling bamboo shades.Every shade is meticulously handcrafted from start to finish. it can be long-lasting and durable. Connecting you with nature without leaving the comfort of your home.We will double check the order information especially the measurements before proceed the order so that the shade will fit your window perfectly. The bamboo shades are made of selected natural bamboo,We have 20 years of experience manufacturing and assembling bamboo shades.Every shade is meticulously handcrafted from start to finish. it can be long-lasting and durable. Connecting you with nature without leaving the comfort of your home. Letau patented technology No Tools-No Drill system allow it no need to drill any holes on your window frame, great for Renter, Landlord, and Home Buyer. Easy to Install in 45 seconds with no tools-no drill, screws, or brackets. And it can afford maximum 35kg. Fit All Kinds of Walls, like woodiness metope, tile marble, concrete wall. We are a truly custom bamboo blinds factory and verify with you the all order information especially the measurements before processing you order so the shade will fit you window perfectly.