[High optical clarity material]: Using special acrylic and ABS materials, so that it is as clear as crystal, horizontal direction at a glance. [High precision]: high precision and easy to operate, fast and accurate; Precision machined inner radius, black lines, internally adjusted for minimal parallax errors. [Scope of application]: Mini square bubble spirit level is widely used in level, head cameras, precision instruments, etc. and used to adjust LCD brackets, set-top boxes, hanging box level, frame level adjustment, wall level adjustment. [Practical]: Made with fine workmanship, practical and extremely beautiful . [Dimension]: Size: 15*15*40mm; Package Included: 5 x Spirit Level. Features: - Scope of application: level, camera head, precision instruments, etc. - Made with fine workmanship, practical and extremely beautiful. - High precision and easy to operate, fast and accurate. - Adjust timing, adjust camera level , adjust the desktop level, adjust the computer case display level, adjust the level of computer monitors and adjust the desktop machine level, adjust the level of toys, adjust the equipment level special. - Adjust the level of furniture placement, adjust the level of carpentry measurement, adjust the level of machinery and factory equipment, adjust the level of equipment, such as 'high accuracy of measurement requirements is available. Specification: Measuring range: 1200mm Accuracy: 30 Size: 15 * 15 * 40mm/0.6 * 0.6 * 1.6in Weight: 48g/1.7oz (approx.) Package List: 5 x Small Spirit Level