Florescent yellow-green color, precision centering with black lines, clearly visible resolution from all sides, easy to read. Accurate and square on all sides. The handy small pocket-sized design is perfect for quick use anywhere, making adjusting more convenient, accurate, and easy to use. Key points for use: The bubble inside the circle indicates that the object surface is level when the bubble is in the center of the circle. This level can be used in many places, such as leveling tripods, telescopes, cameras, TV stands, LCD mounts, pictures, frames, murals, wall clocks, turntables, record players, speakers, and phonographs. It can also be used for leveling RVs, travel trailers, furniture placement, office desktops, computer chassis, displays, and 3D printers for measuring layout and normal usage. Size: 10x10x29mm. Material: Acrylic. Color: As shown. Package Contents: 6 x Mini Bubble Spirit Level. Only the above package content is included; other products are not included. Note: Lighting and different displays may cause slight color differences in the item shown in the picture compared to the real thing. Measurement may allow an error of +/- 1-3cm.