Electric toothbrush head: 1,Dupont 612 soft nylon 2,Bristles in different colors 3,OEM accepted 4,Eco-friendly Electric toothbrush head features: ... 1,Musical toothbrush head:According to the teeth cleaning tools ... 1mm /612 0.15mm.4.Common use toothbrush:ET-BE005-3X,ET-BE004,ET-RE001,ET-MT001,ET-ME002. Electric toothbrush head