No Drill Installation: Tension blinds no tools no drilling to ensure none damage to your walls or window frames, stable and secure, long last life and never fall down. Both top rail and bottom rail are aluminium material and color matched with the shades. Blackout Cellular Shades:Unique cellular design with built-in environmentally friendly aluminum foil coating inside make Changshade cellular shades can achieve 100% room darkening effect and provide perfect privacy, and block out harsh sunlight and reduce harmful UV rays to protect indoor furniture and family members. Safe Cordless Design: No Cord mechanism is perfect for homes with children or pets, and has been certified "Best for Kids". The blinds pull down and stop at any spot, easy to install for inside outside mount, great for home, living room, bedroom, nursey, baby room, bathroom, kitchen, etc. Thermal Insulated&Noise Cancelling: Changshade pleated cellular blinds with the diameter of 1.5'' honeycombs keep out extra air or noise that comes in through the window or door, providing an efficient barrier to heat and cold air. Unique honeycomb structure helps absorb a mount of sound and "quiet" noisy neighbors. What You Get: Cordless blackout cellular shades no tools no drill installation, directions that make it easy to install and a one-year warranty by Changshade. We provide professional customer service before and after purchase. Whenever any questions, feel free to contact us and we always respond within 12 hours. Customer satisficatin is our top priority. Changshade No Drill Blinds for Indoor Windows Adjustable, Cordless No Tools No Drilling Cellular Shades Color-Matched 1.5" Honeycomb Blinds Blackout Room Darkening Light Filtering, Easy to Install.