You are looking at 4 x 25mm Crutch Ferrules made by Coopers.
4 of 22mm Coopers Ferrules Crutch tip Walking Stick Frame Ends 7/8"
4 of 16mm Coopers Crutch tip Walking Stick Frame Ferrules Stick End 5/8"
4 of 18mm Grey Coopers Ferrules Crutch tip Stick Frame Ends 11/16"
Pack of 4 Black 25mm Heavy Duty Walking Stick Ferrule Protectors - Versatile Use
4-Pack of 25mm Heavy Duty Rubber Ferrules for Zimmer & Walking Frames - Grey
supregear Replacement Feet for Shower Chair (4-Pack), 25mm Heavy Duty Rubber Tips for Bath Chair, Shower Stool and Tub Transfer Bench, Non-Slip Suction Cup Feet, Metal Insert Reinforced, Grey
