Small Magnetic Spirit Level 52x15x20mm High Precision Three-Line Horizontal Bubble Square Level, Suitable for RVs, Caravans, Turntables, Tripods, Gramophones, Photo Frames. Package Included: 4 x Spirit Levels (with Magnetic on the Back). Magnetic Spirit Level. Magnets are attached to iron or steel surfaces to indicate their level. Usage: Used for leveling construction, tiles, ceilings, placing furniture, etc. How to Use: Place it on the place to be measured, and the bubble in the middle is horizontal. Horizontal Bubble Square Level Precision Bubble Measuring Kit for Leveling Photo Frames, Art Frames and Murals, Hanging Paintings, etc. High Precision Mini Square Green Spirit Level Accessories for Leveling Cameras, Tripods, Machines, Instruments, Small Square Level Sets Green Spirit Levels Mini Levels for Leveling Shelves, Woodworking, Desks, Wall-Mounted TVs, TV Stands Wait. Small Square Level Mini Spirit Level Green for Leveling Shelves, Woodworking, Tables, Desks, Wall Mounted TVs, TV Stands and More. Mini Bubble Level Square Bubble Small Spirit Level Marking Surface Level Measuring Tool, Mini Spirit Level, Used for Canvas Before Painting Spirit Level, Easy to Use.