Bring a flash of brightness to your crutches with a coloured ferrule.
The 'ferrule' is the rubber stopper on the end of the shaft which makes it non-slip on the ground.
He we have the most common size available - 19mm (3/4 inch) inside diameter, 35mm (1 1/4 inch) outside diameter.
The coloured ferrule is available as blue, green, orange or purple.
Sold as singles.