Dual-angled end bristles. Dual-angled easily reach back and in-between teeth for effective cleaning and removal of plaque. Tapered head design allows easy access to back teeth. Rubber handle grip for better control. Textured tongue and cheek cleaner on back of toothbrush head removes more odor-causing bacteria than brushing alone. Quality guaranteed or your money back. For product questions or concerns, contact us at 1-877-846-9949. Made in China.