●【Top Down Bottom Up Shades】 With push-pull automatic locking system, the cellular shades can be controlled up and down freely and stop at any height below the maximum height. ●【Insulating】 All backside of our honeycomb blinds is WHITE, because white can reflect dazzling sunlight effectively. In cooperation with air stored in a hexagonal honeycomb structure, our blinds can perfectly achieve heat insulation and heat preservation. ●【Blackout Cellular Shades】 The aluminum foils are built into the hexagonal honeycomb structure of our up down blind, which achieve 100% blackout effect. ●【Medical Grade Fabrics】 We do not use low-cost fabrics and our fabrics do not contain adhesives, so the fabrics will not emit toxic gases. ●【Installation】 Inside & outside window frame mount are both applicative.