The Ring Timer face is a full 9 inches in diameter, with tactual numbers that are 1 inch high. Every five minute interval is marked with a raised line, and it has the longest ring of any timer we've seen anywhere. It can be mounted on a wall, rest flat on a table or kitchen counter and can stand upright on its own detachable base. Use it anywhere - we've built in everything but the kitchen sink, but this timer's not just for use in the kitchen.