Projects horizontal and vertical laser "chalklines" on surfaces and wall. Ideal for floor and wall tiling, paneling, wall fixtures, wallpapering, stenciling, wainscoting, finish carpentry, outlet switches, lighting fixtures, wall studs, partitions and much more. Non-abrasive vertical mounting. Push button application with adhesive putty mounts intrument to surface. Includes: 2 laser targets, adhesive putty, carrying case, batteries, User's manual. Line accuracy: 1/4 in at 60 feet. Working range: up to 100 feet, dependant on illumination of area. Laser diodes: two (2) 635nm diodes, class 2m. Power: Three "AA" batteries (included). Environment: Waterproof* (IP55)