Colour Multi Material Plastic Brand Generic Shape Oval Number of Pieces 2 About this item ??ADJUSTABLE FINGER RING?: you could lock the number when you stop count. Tally Counter Clicker-Our Tally Counter is different from others which need to be held by your finger, the mechanical manual clicker with adjustable circle snap design, it not easy to fall off your finger. ??AUTOMATIC?: With Statistical reading, automatic power off and the counter can be cleared to zero. ??NO BATTERIES REQUIRED?:You also can change battery yourself.