Rollers on sliding patio door

Wondering if you can help me get replacement roller for door. We want the steel rollers , same as we have now. Need 2 of them, need help identifying. Thank you

Thank you so much for your help, thinking we'd have to replace whole door, son in law removed door & found old rollers were rusted so badly. To get us through to have door close easier he put a spray lubricant in rollers, but will do till new rollers get here. Thanks a whole bunch great setvice