SIZE: Our cover is suitable for most Washers and Dryers on US market. Please measure your machine carefully before placing your order. WATERPROOF AND SUNPROOF: The Fabric is made of High Quality Nylon. The Cover is waterproof and can keep the machine away from dampness, dust, discoloration and scratch. DESIGN: Our cover is designed with Zipper, which lets you open the machine without removing the cover, simple and convenient. Cover on 3 sides: a maximum to protect the machine keep away from water and dust. There is no cover at back, so that it can make the machine keep cooling. 2 ropes on the background are adjustable, helping the cover fit your machine well. SUITABLE FOR: kitchen, toilet, bathroom, balcony, patio, eaves, awning, etc. If you need better protection for your Washers/Dryers, please choose our ENHANCED Covers. Size: The "A" means suitable for clamshell washing machines; "B" means suitable for front-loading washing machines.