The Signal Vertical Expert toothbrush features fan-shaped bristles for effective vertical brushing. Clinically proven to clean better, it is recommended by dentists for superior dental hygiene. Suitable for adults, this medium hardness toothbrush ensures thorough interdental cleaning. Key Features Fan-shaped bristles for vertical brushing Clinically proven to clean better Medium hardness for efficient cleaning Extra fine long bristles for interdental cleaning Recommended by dentists The Signal Vertical Expert toothbrush features fan-shaped bristles for effective vertical brushing. Clinically proven to clean better, it is recommended by dentists for superior dental hygiene. Suitable for adults, this medium hardness toothbrush ensures thorough interdental cleaning.Wet Toothbrush, Apply Toothpaste, Brush At 45-Degree Angle In Circular Motions For 2 Minutes, Rinse And Use Twice Daily, Replace Every 3-4 Months Or When FrayedKeep Out Of Reach Of Children Under Six.