ewinever 3-Pack handheld Tally Counter 4 Digit Mechanical Palm Clicker Counter, Number Counter/Pitchers Scores counter/Crochet Stitch Counters and Other Sport Event No batteries required and counts up to 9999, Instant reset knob. Simple to use and works as you expected. ABS Plastic Case, smooth for comfortable to hands to work, it is durable and eco-friendly to environment. The lightweight for convenience portable to anywhere. Instant Reset Knob easily use to restore as zero and comfortable finger grip firmly hang up your finger. The light weight can be convenience for portable to anywhere. Widely used , School, lab, Competition, Stadium, Casino, Restaurant Bars, training activities and other Events. Money back guarantee30 days Fully Refund and 1 year Replacement Guarantee. No risk for you. Any question,feel free to contact us. Package: A Pack of 3 PCS Package Size:2.83x1.57in Material:ABS Plastic Case &amp; Stainless Steel Ring Weight:30g*3 3 Color:Blue Yellow and Red. Digital Display and Easy to use:4 digit counts 0000 to 9999;once a time when you press once it counts for one. No batteries required.Easily reset by turning the knob. It never skipped a beat and are 100% accurate.