I received the right brake assembly for a A2220 four wheel walker on May 16th, on schedule. The Carex walker that my mother has is not the same model. However, the right brake handle is identical to that on her walker. I disassembled the assembly removing the handle and installed it on the right side frame of her walker and connected the existing cable to the handle. The brake functions well now. When ordering the part, i did not see a place to specify the walker model. I can send a photo of the walker with handle installed if requested.