As part of the official Colin Montgomerie golf range, this pocket-sized device is capable of scoring a full 18-hole round, stroke-by-stroke, for up to 4-players. The shock resistant casing features an attachment clip that allows it to be easily secured and removed from golf bags and belts, or if you prefer, the strap can be removed and you can place the device comfortably within your pocket. The perfect replacement for scruffy scorecards and lost pencils. The device also includes a built-in clock and digital thermometer.