Available with either a red disk or black disk - the high contrast disk and braille numbers, along with the the open-face design allows for a tactile experience to aid in setting the timer while also encouraging Braille education. Can be displayed on a flat surface with rubberized feet to keep in place, or upright with foldable feet. The high contrast disk aids low vision users to discern the time remaining. The numbers on the disk use the Nemeth Code, a Braille system specifically designed for mathematical and technical content. Audible final alert optional.