SPEC Color: Yellow Product Dimensions: 10.7*5*18.5cm/4.21*1.97*7.28in Wavelength: 650nm-680nm Net Weight: 119g Accuracy: ±0.5mmPackage NOTES Vertical lines appear on horizontal surfaces, and vice versa. This is normal and can be adjusted for optimal results. Multifunctional: This multifunctional line projector provides horizontal and vertical light, cross-line projection and points of light. It even produces vertical lines when rotated horizontally, providing all the features needed for any project. Enhanced visibility: Built-in LED lights ensure easy, accurate measurements day or night, even in low light conditions. Compact and practical design: battery-powered (not included), this lightweight, portable multifunction line projector is easy to use and carry around, perfect for work on the go. Accurate and reliable: Dual bubble bottle horizontal and vertical checks ensure accurate work, making it an important tool for DIY enthusiasts and professionals.