Digital Tape Measure Rechargeable Small Smart Long Distance Rolling Measuring Tool for Flat Curved Diameter Odd Shape High Precision Father'S Gift Linear, circular, arbitrary curve, irregular surface , cylindrical diameter, accumulation/subtraction of 10 historical records, measurement prompt sound, Unit switching.such as body, clothes, kids toy, odd shape, pipe diameter. Start Using ON/OFF: Press the switeh fer about 1 secend to boot Press the switch for about $ seconds to shut down. 180 seconds without opcrating system wil automatically shut down The breathing llght stan's on after power on ard can be measured at amyy time Start Measuring:Keep the electronie ruler wheel in contact with the measuring object and sndethe measurement data wll be displayed on the screen in read tine,and thebreathing light will continue to flashn durng the measuremnent. Read And Store Measurement Data Read measurement data:Press any small triangle button to call out 10 groups ol histcrical measuremmentdata. Stoaqe ofmeasurement data.During measurcmcnt, press the middlc button brielly to reset and save thecument cata.Dwing measurement, the current data will be autonatically stored in 30 secondswithout opcating system,and the data in thc main displsy area will be reset toZerD. Item model number Duka mini Q Color Black Product Dimensions 2.09"L x 0.59"W Country of Origin China Package Dimensions 4.57 x 2.68 x 0.83 inches; 1.06 ounces Item Weight 30 Grams Blade Length 99 Meters Brand LIMORUNS Manufacturer DUKA Shipping Fast shipping is very important for us. Our standard US shipping service is FREE. Your order will be shipped within 2-3 business days upon full payment received. Your order will be delivered within 2-3 business days after the handling time. We only ship to the confirmed PayPal address. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. Returns and payment We offer a 30 days return policy from checkout winning date. We allow only PayPal as payment method FeedBack Your feedback very important to us, after you get your package and you are satisfied with our service please leave us positive feedback If you have any problem with your order / any questions please before leave any type of feedback For any questions, using contact system Please visit our store to check out other items for sale! Thank you for shopping at our store.