EBayAcrylic High Precision optical clarity material Three Black Lines, internally fitted gives minimal parallax errors. For professional measuring and normal usage. Use For Adjust the furniture placement level, Photo frame/3D printer/Camera horizontal，factory machinery, carpentry measuring level and equipment level such as high accuracy of measurement requirements is available. Mini appearance, easy to carry, more accurate measurement,Use 3M double-sided adhesive to stick and fix in various directions. Magnetic/nonmagnetic Dual-use Bubble level Put onto the surface you want to measure, the middle position of bubble inside the spirit level will show that the surface is level. Magnetic small pocket level tool,easy carry and storage,Package List:3x Mag Strip and 3x Square Bubble Level Measuring Tools Total Size : 52*18*15mm Weight:27g. Color : Green Product description Horizontal measurement and correction Construction levels use for bubble level for RV Industrial vehicle levelling Industrial application Levelling Camera leveling,Adjust the LCD mounts,Set-top boxes hangin,Platform levelling,Furniture leveling small bubble level level Package List:3x Mag Strip and 3x Square Bubble Level Three line ensitivity :0.25-0.75Mm Line Spacing: 4.5 Mm Line Size : 52*18*15mm Weight:27g Colour: Green Backing Colour :Clear Usage Method: Put the bubble spirit level onto the surface you want to measure, the middle position of bubble inside the spirit level will show that the surface is level. Bubble level for RV Square Spirit Level Picture Hanging Levels Mark Measuring Instruments Layout Tools for Campers and Trailers, telescope tripod leveler