Refill of 3 toothbrush heads - Extra soft

Usage advice - Every three months, the bristles of the toothbrush wear out, it's time to change just the head! Unclip the current head, clip the new one :) - Each head is made up of an ABS (Acrylonitrile butadiene styrene) base, a thermoplastic that is ultra-resistant to shock and humidity, a metal ring and bristles. These bristles are made of nylon. Nylon allows our toothbrush bristles to return to their shape after brushing. Everything is made in France.