96% Polyester and 4% Spandex Simple and Smart Look: This wrap around Grey box spring cover can fit perfectly, and protect your bed frame from dog hair, dust etc, hide your bed box spring and give your bed a nice crisp finish. Nice alternative to a bed skirts: This wrap around box spring cover is amazing idea, It is a adjustable bed cover and wraps the sides of the the box spring, and won’t hang down or obstruct under-bed space. You don't need to loft the bed to put it on, Just slide it over the mattress down to the box frame. So much easier and neater than bed skirt. Ultra Stretchy Spandex Type Material: 96% Polyester and 4% Spandex, like a thick wrinkle-free bathing suit and yoga suit material, Super soft and stretchy, high quality and durable, flexible cover to fit tightly for your box spring, and has a modern clean look. Easy on Easy Off: It is not a traditional box spring mattress cover.This is like a big stretchy headband for your bed. Make sure the corners on your box spring meet with the corners of the cover, then slip this over your bed spring, wrap around the edges of the box spring only, without having to remove the mattress. Care Instruction: The stretchy cover with deep corner pockets to fit perfectly of from 8.5” to 9” height of standard box spring. For low height box spring(Like from 7” to 8” ), suggest to use some elastic straps on buttons or to safety pins to adjust much material to make it fit well. The cover is super easy off for machine washable, and wrinkle-free. The stretchy cover with deep corner pockets to fit perfectly of from 4” to 12” height of standard box spring. For low profile box spring, suggest to use some elastic straps on buttons or safety pins to adjust much material to make it fit well. Specifications: Package Included: 1 set plain color Grey box spring cover queen with instruction manual. Material: 96% Polyester and 4% Spandex. Width:Fit the width from 35 inches to 43 inches, better for 39 inches. Length:Fit the length from 71 inches to 79 inches, better for 75 inches. Fit size:Fit for Twin ,Twin XL,Single,Single XL Height:fit the Height from 4 inches to 12 inches , better for 7.5 to 8.5inches. Style: Simple and stylish Perfect for: Bedroom, living room, Guess room,hotel room, children's room, kindergarten room, etc. Tips: There might be a little color difference due to the monitor, camera or other factors. The cover is super easy off for machine washable, and wrinkle-free.