WonderSmile Oral Irrigator Pro - SmoothFlow Technology for Optimal Tooth and Gum Care - Interdental Cleaner with 4 Modes (All White Oral Care Set, 1 Piece (Pack of 1)40,000 RPM Our head moves with up to 40,000 vibrations per minute. Discolouration, residue and plaque are gently and reliably removed. CONFIRMED BY MARKET STUDIES 92% performed better with oral irrigator and sonic toothbrush than flossing. 0% felt pain during use ORAL HEALTH BENEFITS Common market studies show an 89% reduction in plaque and bleeding gums Sustainable brush heads Flexible head made from up to 90% renewable materials that protect gums