Pelvic Correction Slim Cushion I purchased this a while ago. It uses your own weight to apply pressure and correct your pelvis to the proper position. There is no box or instruction manual. Would you like to try it? The color is closest to the first photo. It has been stored at home, so there is some aging, but I think it can still be used. Please check the photos for any stains, and consider that this is a used item.