Standard size3 x bath plugs13*13cm, grey/blue/white. Applies to all sizes of the drain opening: 25 mm, 30 mm, 35 mm, 40 mm, 43 mm, 45 mm, 50 mm, 60 mm, 65 mm, 70 mm, 74 mm, 75 mm, 80 mm, 84 mm, 90 mm and in between. . High-quality material food-grade silicone, non-toxic, eco-friendly, work with dependable water-tight theory to seal bathtub drain firmly in place . Good SealSilicone drain plug has wide and pliable sucker shape, can seal greatly with no leakage which can effectively reduce water waste, as well as good block drain bad odor.The drain is 100% sealed. . Easy to UseJust lay the drain stopper flat, it will automatically suck on sink, easy to use it can be disinfected in boiling water, easy to clean and can be rolled up for storage, ideal for travel. . widely usedstain-proof, recyclable, easy care, machine washable, keep water and toys in tub from flowing down as well as prevent undue blockage at some extent,wildly applicable for most bathroom bathtub, tub, kitchen, laundry sinks .