- Clear red laser line for indoor use, installed at 0.5-5 m height and 8-10 m length. Ideal for positioning and marking in woodworking, stone working, and fabric/clothing cutting to improve accuracy and speed. - Glass cylinder optics deliver a bright, sharp, and precise line. The emission range is protected by a glass window that resists dust and fog and is easy to clean. - Durable, long-lasting performance: high quality laser diodes run continuously 24 hours a day, with a service life about 3000 hours longer than conventional products and 40 percent higher stability. - Flexible mounting for optimal alignment: universal holder supports up, down, left, and right adjustments plus 360 degree rotation. A large base provides stability and practicality. Compatible with installation on any vertical or horizontal surface and enables three-dimensional adjustment for best results. - Practical use scenarios: mark cut lines for woodworking and stone fabrication; align patterns for clothing/fabric cutting; set up precise layouts for cabinetry, tiling, or other indoor projects.