I'm selling keyholder covers I purchased from Seria! Rectangular type, 4 pieces per pack, a set of 6. Suitable size: approximately 10cm (length) x 5cm (width), thickness of 4mm or less. Unopened and unused. I bought a lot because I was worried they would be discontinued, but I don't think I'll use them that much, so I'm putting them up for sale. They are very convenient for protecting keyholders, such as acrylic keychains, from scratches.