MEDICAL ROLLATOR WALKER REPLACEMENT WHEEL SWIVEL PIECE. This listing is for the wheel swivel only, not the walker, walker is shown for reference only and is not included. See pics for details. I can't find any brand name or model number anywhere on this walker. Please use the measurements and pics to help you decide if it's right for you. Please ask if you need additional details as I'm happy to provide them. The shaft is about 7/8" in diameter. This is more of the newer style, not so much like the older traditional style, if that makes sense. Blue# #87
eBay