How to dispose
A metal staple is used to clamp the the plant-based bristles into the brush, keeping them from falling out you're brushing your chiclets! It's a normal part of a toothbrush, and even plastic ones have staples in them too!
When you're ready to replace your toothbrush head (dentists suggest every 3 months), simply replace with a new head and keep the handle.
To dispose of the used head: You can remove the bristles from the head using a pair of pliers, which will also remove the staple, and compost the bamboo. The bristles are not yet biodegradable, but fear not, we're working on a solution!