- Description Canes are such a helpful item in the garden however safety with eyes is a must. Now with our Cane Safety Caps you can have total enjoyment! Flexible rubber ensuring movement when required, with ability to take 12mm diameter with ease makes gardening a safer task. Cane Safety Caps works with Bamboo Cane or Timber etc 10-12mm flexibility you should also have success with 8mm constructed to be fully reusable time and time again. Comes in bundles of 5.