【SERVICE GUARANTEE 】 --From the date of purchase, We provide free replacement service if your cordless cellular shades has quality problems within 12 Months. 【Newly upgraded up and down track】This cellular window shades uses s streamlined top rail,The top and bottom rails are the same color as the fabric，better matching with the fabric. --Hidden mounting bracket, ultra-thin thickness, ONLY 1mm minimal gaps after installation. --The mounting required for the depth of the window frame required is much smaller, requiring only 2 inches. 【UPDATED SMOOTHER PUSH-PULL】 We have made improvements for the common problems of the honeycomb window blinds on the market, this product upgraded the top of the machinery, can be more smooth and effortless in push down from the top and pull up from the bottom. 【SUPERIOR SPUNLACE NON-WOVEN FABRICS】 The Blackout or light Filtering cellular blinds uses high-quality spunlace non-woven fabric, which can effectively resist wrinkles and stretch without deformation. At the same time, you can choose blackout or light-filtering fabric according to the scene. Blackout Fabric--Totally block out sunlight, can provide a night-like environment. Light Filtering Fabric--Let some sunlight in when protecting your privacy. 【About size ordering】 If you know the size you want for your honeycomb shades, you can select it directly from the size list or choose Customize Size. If the size you need is not on the page, you can contact us via Amazon email. We will confirm the size with you twice to make sure the window shade fit your window. cellular shades