The AC inside cover can prevent the entry of cold air from the outside, protect the indoor warmth in the cold winter, save the indoor heating cost, and prevent the indoor warm air from leaking. Description: With more thicken and dust-blocking design, the air conditioner cover can provide highly protection to keep the moist or dirt from clogging up the machine. What the air conditioner cover can offer you is that it is with free elastic straps to fully cover the machine and is not easy to fall out. Made of cotton material, it is eco-friendly. There are four sizes to choose from. It is suitable for home, household, dorm, office, etc. Item Name: Air Conditioner Cover Material: Cotton Features: Waterproof, Dust-proof, Multi-purpose Size Details: S: 43.5cm x 35.5cm x 6.4cm/17.13" x 13.98" x 2.52" (Approx.) M: 53.5cm x 38cm x 6.4cm/21.06" x 14.96" x 2.52" (Approx.) L: 64cm x 43.5cm x 6.4cm/25.2" x 17.13" x 2.52" (Approx.) XL: 71cm x 51cm x 6.4cm/27.95" x 20.08" x 2.52" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Air Conditioner Cover(Others Not Included) EFFORTLESS INSTALLATION - SECURE WITH EASE: No tools needed—just place the cover over the window air conditioner unit and pull the drawstrings tight for a perfect fit. Remove the inconvenient cord hole for easy setup. SAVING ENERGY: Embedded with silk, our indoor air conditioner cover prevents warm air from escaping and blocks cold air from entering through the AC, thereby reducing heat loss and lowering heating expenses during winter. Multi-directional protection:The air conditioner cover can protect the air conditioner from many aspects, it can effectively prevent the entry of cold outside air in winter, and the AC cover can prevent dust, dirt and other small debris from clogging your air conditioner unit when not in use Perfect Design:Polyester + cotton, three-layer windproof, with a small hole at the bottom (lower left corner) for the power cord to enter and exit. Simple installation, light weight, easy to fold and carry. This window air conditioner Cover comes with an Elastic Strap Perfect Size:There are four sizes to choose from. S: 43.5cm x 35.5cm x 6.4cm/17.13" x 13.98" x 2.52" (Approx.) M: 53.5cm x 38cm x 6.4cm/21.06" x 14.96" x 2.52" (Approx.) L: 64cm x 43.5cm x 6.4cm/25.2" x 17.13" x 2.52" (Approx.) XL: 71cm x 51cm x 6.4cm/27.95" x 20.08" x 2.52" (Approx.) Please choose our AC cover according to your air conditioner size.