The PenVinoo 20 PCS Pet Dog Soft Toothbrush is a complete oral cleaning kit that includes 12 pcs of a double-headed dog toothbrush and 8 pcs of a two-finger dog toothbrush. These brushes are made from soft cotton and nylon with super-elastic fibers that fit your fingers well without falling out. The brushes are air-dried for repeated use and are then washed in warm water. The threaded design on the double-headed brush provides a better friction effect when cleaning your pet’s teeth.