1) Food grade BPA free liquid silicone + PP material, more safety, environmental and healthier. 2) Finger shape design, more convenient for cleaning teethridge and coated tongueof baby, help the growth of baby’s deciduous teeth. 3) Integrated molding, good combination of the finger part and brush. 4) Heat-resistant up to 120 degree. 5) Soft and elastic, suitable for baby’s mouth, safe to use. 6) With PP box, portable and cute design, can be used outdoors.