Have you ever slammed your finger or jammed it? This what the finger brace is used for. But this finger brace has straps that are adjustable for any height of fingers. The measurements are about the average of a human finger: the length is 10 cm, the width is 2 cm ( is the space for the finger ), and the height is adjustable. The brace also has the curve like a finger so it isn't uncomfortable for the finger.