Non toxic. Choose your toothbrush. Fits any Radius replacement head toothbrush. Better by design. Replace, Refresh, Reduce: Swap this head out for your worn-out one. Replacing heads instead of throwing a brush away reduces plastic consumption and waste by 93%! If everyone in the world switched to source, a whopping 4 billion less toothbrushes a year would end up in landfills! Wide, gum massaging design. Soft bio-plastic bristles. Long neck for deeper clean. Green by Design: Saves 93% of brush normally thrown into landfills. Bioplastic bristles. Recycled & sustainable packaging. Botanical-based inks. Water-based coatings. 100% toxin free. Low-energy machines. ADA Accepted: American Dental Association. www.madebyradius.com. Discover Our Clean & Green Mission: www.madebyradius.com. Women owned. Cruelty-free. Made in USA. Proud to be made in Pennsylvania, USA.