●4 Digit Type: Can count from 0 to 999. Easy reset and strap for use anywhere ●【ECO-FRIENDLY DESIGN】 No batteries required due to mechanical operation. Eco-friendly design. Compact size fits well in your hand. Easy to carry, can be used anytime, anywhere ●【Durable Material】Made of metal and ABS resin, rust resistant and smooth surface ensures ease of use ●Versatile Uses: Can be used in a wide variety of situations, such as personnel inspection, traffic inspection, product classification, and more ●[Peace of Mind Warranty] If you are not satisfied with the product, we will offer a full refund within 30 days. Try it with confidence