Thank you for viewing. This is a box spring sheet from the brand Blanko. It is a new, unused item. Please feel free to ask if you have any questions. The following is quoted from the product website: This is a quilted box spring sheet made with ultra-fine microfiber fibers, which is light, fluffy, and very soft to the touch. Because it traps a lot of air within the ultra-fine fibers, it has high heat retention and can be used warmly despite being very light. Adding batting to the surface increases the cushioning. Quilting the surface reduces the unevenness of the batting. It can be washed in a home washing machine (using a laundry net). ● Size Queen ● Product size (cm) Width approx. 160 x Depth approx. 200 x Height approx. 30 ● Product weight Approx. 1.8kg ● Material Surface: 100% polyester Gusset fabric: 100% polyester Lining: 100% polyester Batting: 100% polyester ● Remarks With elastic band all around