Ferrules should be checked on your stick every 6-9 months to make sure your grip on the pavement/surface is safe.
These tri ferrules will give you tri directional support and your cane/ walking stick will stand upright without intervention.
Please measure the end of your stick to confirm, as a guide: this 19mm (internal size) is fits most sticks apart from slim petite ones.
They will fit most sticks, universal fitting.