I bought this for ¥5980 on Rakuten, but unfortunately, my bed has a step, so I can't use it, and I'm selling it. I haven't even taken it out of the box, so it's as good as new, ♡! Below is a quote from the Rakuten product description↓ 30cm ultra-wide size, a mattress band set that can be washed. - Product Name: Gap Pad x Mattress Band Set - Width: 30cm ultra-wide - Units Sold: Over 30,000 sets sold - Washable: Washable mattress band ■ An advantageous package that combines two popular products A "mattress band" that securely fastens two mattresses, and a "gap pad" that fills the gap between two mattresses. This is an advantageous package that combines these two popular products! ■ A set that can cover each other's weaknesses With the mattress band alone, "the mattresses no longer separate, but the gap between the mattresses isn't completely filled." With the gap pad alone, "the mattresses separate, so the gap pad falls into the gap between the mattresses." Based on customer feedback, we created a set of these two products to cover each other's weaknesses. ■ Mattress belt made with the goal of being "difficult to loosen" Lifeest's mattress band is the 2021 latest version of the mattress band, improved based on customer requests. By reducing the shine of the material, it is less likely to slip than before, and by lightening the buckle, it is less likely to sag. Thank you for looking. ♡