InBetween Extended Cleaning Bristles to get further between teeth than the leading brush (vs. the leading brush in lab testing). Extended Cleaning Bristles on the outside of the brush reach far between teeth and under the gum-line. Densely packed multi-level bristles are designed to clean and remove plaque. Soft bristles are gentle on teeth and gums. Ergonomic grip designed for comfort and control while brushing. Reach toothbrush with its unique angled neck and tapered head is specially designed to clean hard to reach places in your mouth. Made in Mexico.