This is a queen-size mattress cover made of breathable material. I purchased three and was able to rotate with two, so I am selling one that I don't need. For those using GOKUMIN, How about a spare? ⚫︎Brand: GOKUMIN ⚫︎Product Name: Mattress Cover ⚫︎Color: White ⚫︎Size: Queen, approximately 160 x 195 x 4cm ⚫︎Material: Breathable fabric 　Surface: High-quality knit fabric 　Back: Non-slip processing ⚫︎Features: Zippered storage bag ⚫︎Compatible Model Number: MQ-01 ※Will ship within 1-2 days of purchase. ※No discounts or returns. ※Instant purchase OK.