End rounded, polished bristles. Compare to Colgate Wave (Colgate Wave is a registered trademark of the Colgate-Palmolive Company). Handle curves to fit hand to allow a more comfortable, controlled grip while brushing. Rubber insert design provides better grip and handling. Bristle trim curves to follow the shape of your teeth for exceptional cleaning! Quality Guaranteed: This TopCare product is laboratory tested to guarantee its highest quality. Your total satisfaction is guaranteed. Made in USA.