Lightweight & PortableThe electronic tape measure has 15mm in thickness, and 30g in weight. It is only 1/3 the size of an ordinary tape measure and 1/4 the weight, which is convenient for you to carry and measure at any time. Quality MaterialsThe electronic tape measure made of high-quality 6063 aluminum alloy, high-hardness plexiglass and ABS materials, this product features compression resistance, scratch . 99 Meters Ultra-long Ranging A single 0-99m practical distance measurement, and a maximum of 99 meters (automatic accumulation) ultra-long distance measurement. Ultra-long EnduranceThe electronic tape measure with the built-in 200mAh low internal resistance lithium polymer battery, once fully charged, it can achieve ultra long standby up to 200 days. Charge for 5 minutes and last 2 hours. Wide ApplicationElectronic ruler suitable for Such as straight line measurement, round measurement, arbitrary curve measurement, irregular surface measurement, cylindrical diameter measurement, accumulation/subtraction of 10 historical records, measurement prompt sound, measurement breathing light , Unit switching, etc.; easily cover your various measurement needs in daily life and work.