Features: This tool is made of quality material with fine craftsmanship, with max scale 44kg/88lb, it can help you to measure the hang force of a bow. One button switch design, quick start with just one press, with a hook for hooking the bow string, easy to use. Clear LCD display can show scale with two kinds of unit, kg or lb. With built-in battery, no need to buy battery. It has power-saving function so the battery can be used for a long time. Suitable for both compound and curve bow, nice tool for archery lovers. Specification: Material: Plastic Color: Shown as picture Power Supply: built-in CR2032 battery Idle Shutdown Function: no use in 60s, auto shut down Size: Approx. 10 x 4cm / 3.94 x 1.57in Weight: Approx. 61g Package List: 1 x Bow Digit Scale 1 x Manual Note: Remove the insulator in the battery before first use. Hold 5 seconds until the LCD shows the scale. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .