Functions:The 3-in-1 design provides 3 different measurement modes: string mode, roll mode, laser mode.The string mode provides a measuring range of 7,000 mm (275.59 inches), the roller mode allows you to measure curves and irregular objects, and the laser mode can measure up to 7,620 mm (300 inches).With memory function that can store 9 groups of measurement results.With LED digital display, making it easy to read and more convenient.It provides three units to choose from - centimeter, feet, and inches.Technical data:Material: ABS3 measurement modes: string mode, roller mode, laser modeAccuracy: 1/100 feetTwine measuring range: 7000 mm / 275.59 inchLaser Measurement Range: 7620mm / 300inRoller mode accuracy: up to four digitsDisplay of units: centimeter, feet, inchesData storage capacity: 9 groupsBattery: 4 * AAA battery (not included)Item Size: 9.5 * 9 * 4.5cm / 3.74 * 3.54 * 1.77inProduct weight: 180g / 6.34ozPackage weight: 230g / 8.11ozPackage size: 23.5 * 14.5 * 5.5cm / 9.25 * 5.7 * 2.16inPacking List:1 * digital tape