The Wrist Scorer is very simple to use. Wear it like a watch with its wrist strap for easy operation. At of , it will add up the total score . This Wrist Golf Scorer is a low- mechanical score counter. When you get a shot, press the counter once. You can keep scores from hole to hole. IDOLOVA Golf Club Stroke Score Keeper Count Putt Shot Counter Watch w/ Wristband Band Black Golf stroke counter score keeper With a wristband for easy carrying User-friendly by pressing the counter button Easy to use by pressing the stroke and scores are automatically added up Comes with wrist strape to wear like a watch or attach to golf bag No electronic component No battery needed Gross Weight: 9g Total Length: . 24cm Counter Size (L x W x H): . 3.5 x 2.5 x 0.8cm Material: Plastic & Color: Black Package Includes: 1 x Golf Stroke Counter Note:Light and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.