Have a 3 minutes hourglass to calculate time of brush of teeth.when the hourglass is finish,you can finish brush. Materi: ABSColors:White+blue,White+Pink,White+gollden,etc.Packing Size:13(L)*7(H) CM,Function: Can holder 4 toothbrush together,have a 3 minutes hourglass to calculate time of brush teeth. 3 Minutes hourglass Toothbrush Holders