The new brush has longer bristles and a thicker bamboo head that is less prone to cracking. It is designed to last longer and create more suds when you wash dishes. The handle features a nicer hook that can be more easily hooked in various places in your kitchen. It is faster to replace the head (no more pliers needed) as the metal clasp is shaped better. 

This removable-head dish brush has a Moso Bamboo handle and brush head, with stiff agave fiber (vegan) plant bristles. It is held together with silver metal wire, and includes a small wire loop at the end for hanging dry.

Longevity: Each brush head can be used for months. Make sure to not submerge or soak the wooden parts in water. Hang to dry or place in a dry spot after using it.

If you find your brush head is not staying dry, dip the bristles in vinegar occasionally to help kill bacteria. The wood and bamboo are naturally antibacterial but the vinegar will help too

Continue using this brush until the bristles no longer work or the brush head falls apart, then compost or bury in garden or dispose in a green waste bin. Stop using the brush and replace it if you see any mold growth. 

Replacing the brush head: Squeeze the wires together, loosen the metal grip, and pop off the brush head. Just slide a new brush head on and replace the metal grip that holds it tight.