Bath chair for nursing care, for bathtub

This is a chair for use inside a bathtub from Arron Kasei Co., Ltd. My mother-in-law used it, but she said she didn't use it that much. It has the Anju brand and a sticker. The product name is likely Lightweight Bathtub Stool Just Soft, but it's quite heavy. It's probably the minimum weight necessary. Fortunately, I don't need it yet, so perhaps someone else does.