Radius pure baby toothbrush for ages 6 to 18 months the natural choice for a natural smile signature radius bristles 8 000 premium ultra soft bristles bisphenol a free and dye free world39s first completely dye free bpa free toothbrush tapered handle provides maximum control and guidance radius oval head designed without corners for baby39s soft mouth as baby starts teething 6months place smear of toothpaste on radius pure baby toothbrush at 18