Cordless Cellular Shades: LazBlinds cordless cellular shades are 1/4" narrower than the listed size to ensure a perfect snug fit for inside mounts. For example, if your window is 30" wide, choose a 30" or slightly smaller size. For outside mounts, we recommend selecting a shade 2–4 inches wider than your window for full coverage and balanced light diffusion 2 Mounting Options Included: Designed for flexibility, LazBlinds no-drill blinds come with two mounting kits: one for quick, damage-free setup using foam adhesive, and another with brackets and screws for more secure placement. Perfect for renters, landlords, and new homeowners looking for fast, tool-free window upgrades Cordless & Child-Safe Design: The cordless cellular blinds system offers a clean look and enhances child and pet safety. Easily pull the shade up or down to your desired height—no tangled cords, no risks, just smooth, intuitive operation Thermal & Sound Insulation: The honeycomb structure traps air within the cells to block outdoor heat in summer and retain indoor warmth in winter. Also effective in noise reduction and privacy enhancement, making it ideal for bedrooms, offices, or nurseries Gentle Light Filtering for Comfort: Crafted with a soft diffusing inner layer, LazBlinds light filtering shades gently diffuse sunlight while reducing glare and UV rays—creating a naturally lit space with enhanced privacy LazBlinds No Tools No Drill Cordless Cellular Shades, Light Filtering Honeycomb Shades with 1.5 inch Cells, Thermal Insulation Noise Reduction Blinds for Windows