Cross Line, Laser Level, SelfLeveling, Projects 2 Very Bright Lines That Are Perfectly Level Plumb, Mm 2 Flexible Mounting Device Clamps To Multiple Surfaces Provides Micro Fine Height Adjustment, Smart Pendulum System SelfLevels Indicates Out Of Level Condition, Pendulum Locks When Switched Off, Manual Mode Locks Line For Use At Any Angle, Ergonomic, Compact Lightweight, Features 14 TriPod Thread For Use With Mm 2 Mount, Versatile Clamp Provides Stable Grip On Thin Surfaces From 12 To 214 Thick