You are looking at 4 x 25mm Crutch Ferrules made by Coopers.
Pack of 4 Black 25mm Heavy Duty Walking Stick Ferrule Protectors - Versatile Use
Safety First: 4-Pack 25mm Rubber Ferrules for Enhanced Walking Frame Stability
(Pack of 4) 25mm Rubber Feet Ferrules Caps for Steps Ladders by Lifeswonderful?
Durable Non Slip Rubber Walking Stick Ferrules Metal Reinforced 25mm Pack of 4
Essential Pack of 4 Heavy Duty Black Rubber Ferrules for Walking Sticks, 25mm
(Pack of 4) 25mm Rubber Feet Ferrules Caps for Steps Ladders by LifeswonderfulÂ
