The Bosch GTL3 Tile and Square Layout Laser shines bright, highly-visible laser lines above the surface being worked with to project over uneven surfaces. The beams on the Bosch GTL3 are clear, sharp and very precise for allowing for perfect jobs done right the first time. Features: * Magnets on bottom of tool provide secure attachment on positioning plate and ferrous-metal surfaces * Select 0 and 90 degree lines plus optional 45 degree layout line at the press of a button * Bright, highly-visible laser lines What"s In The Box: * Bosch GTL3 Tile and Square Layout Laser * Versatile steel positioning plate * Four AA batteries * Laser target * Belt pouch