Perfect for harder brushers, the flexible rubber neck and non-slip handle reduces pressure while the wide oval head provides an all-over mouth clean that leaves you feeling transformed. 300% more bristles than ordinary toothbrushes ensures the pressure of brushing is distributed evenly, reducing erosion and massaging sensitive gum tissue while the handle has an ergonomic grip to ensure proper brushing at a 45 degree angle as recommended by dentists . Great for Braces! The SCUBA design is exactly the same as the ORIGINAL design except the handles are rubberised.