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Specially designed for childrenaged 3 to 8 of the tumbler toothbrush.According to the national standard,Thesize of the toothbrush head to width is 10 mm, length is 18 mm, thickness is 5 mm,monofilament diameter is 0.15 mm.Toothbrush length is 16 cm.It has four design point:1.Toothbrush head back with a clean tongue coating design;2.The toothbrush head can be replaced;3.Tumbler cup body can be removed;4.Concave and convex button at the bottom of the design can make the tumbler glass vertical to the surface.
Shandong University of Science and Technology