Material: metal shell Size: 53 * 41mm, diameter 46mm Weight: 13.8 kg Quantity: 3 pieces Package Contents: 3 * Mechanical Counter with Metal Case 1. THE ALL-ROUNDER: Whether for sport, leisure, at events or at trade fairs - this practical universal counter counts for you from click to click. Whatever you want - reliably and conveniently. 2. IN PRACTICE: Use the hand tracker e.g. for counting during an inventory, for golf, fitness sports or running as a lap counter, for knitting as a stitch counter or as a people counter to record visitor numbers. 3. Easy reset: With a reset button on the counter, it supports instant reset. Turn it clockwise, it only takes a couple of turns to reset the reading, no need to go through. 4. High quality material: Sturdy metal case, solid but light weight, portable size, comfortable in one hand, the finger ring holder provides additional support for the counter, it will be easy to carry the counter with this hoop. 5. Widely used: widely used for various occasions, such as school, laboratory, stadium, casino, restaurant bars, competitions, training activities. Works well for counting runs, game points, golf, running, attendance, crochet / knitting laps, etc.(SZYS)Notice:1. The monitors used are different, the computers are different, and the camera angles are different, there may be problems with the angle and color.2. Purely manual measurement, there may be 0-1cm error.