The SKIL Self-Leveling Laser Level projects a bright green 360-degree continuous horizontal line around an entire room, covering up to 100 ft. in diameter. This laser automatically levels and features intuitive indicators so you know when your lines aren't level. The integrated, rechargeable Lithium-Ion battery has a micro-USB port for charge-and-go convenience, plus green, yellow, and red LED indicators to let you know the current level of charge. The included adjustable tripod makes it a snap to position the laser lines exactly where you want them. And, for projects where you might not want your lines to be level or plumb, like specialty paint treatments or diagonal tile work, the SKIL Self-Leveling Laser Level locking feature allows you to position the projected lines at any angle you choose.