Automatically adapts to toothbrush size : Automatically Slide close when you place toothbrush on it , Automatically Slide open when you take out toothbrush Different from the fixed size toothbrush holder , the adjustable toothbrush holder is easy to be put in and put out , will not scratch the toothbrush handle Special big circle hole for drainage on the base , to help toothbrush keep dry . Suitable for : the diameter of toothbrush in 15mm - 35mm Easy to install: strong adhesive, Wall-mounted, fixed well . Applicable wall: smooth tile, wooden wall, smooth marble, smooth glass, frosted glass, smooth metal.