Description:Made of ABS plastics and top class dupont material. Special designed bristle for electric toothbrushes, assist to wash the demanding to reach area. Easy to exchange and use. Repleacement teeth brush head for X-3 electrical toothbrushes. The electrical toothbrush heads must be changed every three months as counseled via dental mavens Includes:1 Piece Electric Toothbrush Heads(2 Pack)Note:Colors is probably diversified thanks to diversified video display display. Please allow slightly distinction in length due to handbook measurement.