1、Equipped with bubbles, more convenient to use. 2、Projects a perfectly straight line on any surface. 3、The light is bright and clear, the light will not diverge at a long distance. 4、The product is very compact and portable. 5、It is very suitable for replacing traditional mechanical measuring tools and has higher accuracy. Features: 1. Equipped with bubbles, more convenient to use. 2. Projects a perfectly straight line on any surface. 3. The light is bright and clear, the light will not diverge at a long distance. 4. The product is very compact and portable. 5. It is very suitable for replacing traditional mechanical measuring tools and has higher accuracy. Specification: Condition: 100% Brand New Item Type: Guide Leveler Working Distance : Approx. 5m / 16.4ft Line Width: Approx. 0.5 ~ 1.5cm / 0.2 ~ 0.6in Launch Angle: 180 degrees Product Size: Approx. 12 x 4.6 x 6cm / 4.7 x 1.8 x 2.4in Weight: 90 g / 3.2 oz(approx.) Battery: 2 x 1.5AAA battery (Not Included） Package List: 1 x Guide Leveler