Transparent Bubble Spirit Level For Camera Tripod. Features: -High Optical Clarity Material -Precision Machined Internal Radius -Black Lines, Internally Fitted Gives Minimal Parallax Errors -For Professional Measuring and Normal Usage -Bubble Level is Widely Used in the Following Occasions: Adjust the LCD Mounts, Set-top Boxes, Hanging Box Level, Adjust the Haeundae Level, Adjust the Frame Level, Adjust the Mural Level, Adjust the Calendar, Adjust the Camera Level, Adjust the Office Desktop Level, Adjust the Computer Case Display Level, Adjust the Level of Computer Monitors, and Adjust the Office Machine Level, Adjust the Tripod Level, Adjust the Level of Toys, Adjust Special Equipment Level, Adjust the Furniture Placement Level, Adjust the Carpentry Measuring Level, Adjust the Factory Machinery and Equipment Level, Adjust the Level of Medical Equipment, Such As High Accuracy of Measurement Requirements is Available. Specifications: -Material : PMMA -Diameter :9.5mm -Length : 40mm -Division Line Color : Black -Liquid Color: Fluorescent Yellow-green Package Included:10 X Bubble Level. We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.