Check the listing for details. Pocket Sliding Bi-Folding Doors 3/4" Roller Wheel 1020 Hanger Johnson Hardware. Condition: New. Listed at 5.95 USD. Combined shipping discount!! Pay $4.95 shipping for first Roller & $.50 shipping for each additional Roller Pocket Door Roller has tricycle hanger unique 3 nylon wheels to ensure all wheels carry door weight equally. Smooth rolling balanced wheels offer minimum friction riding on a convex track rails."Flip-of-a-clip Metal not plastic" separates wheels from hanger plate for easy door installation/removal. For doors weighing up to 80 lbs. It includes a steel mount for an accurate and stable fit. This sliding door roller measures 1" in length and offers smooth opening. Screws not included. See print picture.Wheel diameter: 3/4"Top steel mount bracket: 2 1/4" long x 3/4" wideLength: 2.25"Height: 1.44" - 1.94" adjust the nut Width: 1"Product Type: 111 Series Door Hanger 1020 Please let me know if you have any questions.Thank you,Babette