Vintage Sanrio Little Twin Stars Kiki and Lala retailer Cover

Product Name: Vintage Sanrio Little Twin Stars Kiki and Lala retailer Cover
This was found covering a vintage Japanese childrens sleeping mat. it could be used as a Duvet cover as the zipper is in good condition and fully functional. There are ties in the inside corners that were used to tie onto the sleeping mat. There are no dates and no Sanrio trademark that I can find. There are small marks as seen in photos. Kiki & Lala are so cute and this blanket features the Kiki with his original brown hair color. I feel this is old but I cannot confirm for certain as I cannot find any date! Full Size! Next day retailer shipping :).