About these itemsTotal blackout and climate control: Crafted from a coated full - blackout fabric consisting of 100% polyester, an acrylic coating, and a foam blackout layer. This blocks sunlight effectively and offers heat insulation in summer and warmth retention in winter for year - round comfort.Cordless and user - friendly operation: The free - stop feature allows the roller window shades to be adjusted to any height with a gentle push. The cordless design eliminates tangling and is good for pets. An adjustable - rebound - speed built - in spring (adjusted clockwise to slow) ensures smooth and long - lasting operation.Simple installation: The 34 x 72 - inch cordless blackout shades can be installed as inside mounts for windows over 30 inches or outside mounts for 30 - inch windows. All necessary components like brackets, a pull handle, screws, and plugs are included for a quick setup.High - quality build: Aluminum rails provide stability and strength to the shades. Carbon steel brackets can support heavy loads, ensuring a secure installation. The 345GSM water - resistant fabric is thick, sturdy, and easy to maintain.Versatile application: Ideal for different types of windows in bedrooms, kitchens, and studies, as well as for balcony doors, glass partitions in offices or conference rooms, and retail storefronts.Key DifferencesN/A (as only one product is described)SpecificationsItem Model Number: TM - QB - JL29 - 5500 - B - ENShade Fabric Material: 100% PolyesterBrackets Material: Carbon SteelTop & Bottom Rails Material: Aluminum AlloyScrews Material: Zinc - Plated Carbon SteelFabric Weight: 345 GSMPerformance: 100% BlackoutColor: WhiteNet Weight: 3.17 lbs / 1.44 kgProduct Dimensions: 34.06 x 2.24 x 2.67 inch / 865 x 57 x 68 mmPackage Content1 x Cordless Roller Shade1 x User Manual2 x Mounting Brackets1 x Handle1 x Speed Adjustment Wrench6 x Screws6 x Plastic Expansion Plug