We Care Hard toothbrush, Trisa Manual, professional, ECOLOGICAL toothbrush. Ultra light brush perfectly combines durability with functionality and high comfort. Professional and deep cleaning in the interdental spaces. The X arrangement of the filaments, scientifically designed, as well as the brush profile, perfectly adapted to the convexity of the teeth and interdental spaces, give excellent cleaning qualities. The brushes are made from 100% regeneration resources (castor oil) and meet the highest quality requirements in terms of cleaning performance. Despite its light design, the toothbrush meets the highest ergonomic requirements while providing excellent comfort with an extremely light water-resistant handle. It is recommended to change the toothbrush every 3 months!