Feature:1. Suitable for horizontal calibration of scales, electronic scales, camera platforms and other equipment.2. Level Bubble is very compact and can be carried around or put in a kit.3. Made of ABS material, transparent appearance and bright.4. It is easy to see the results of the measurements.5. Available for all high accuracy requirement areas, makes adjusting more convenient and accurate.Specification:Item Type: Level BubbleMaterial: ABSColor: As Pictures Shown Product Diameter: Approx. 90mm/3.5in, Height: Approx. 17mm/0.7inWeight: Approx. 63g/2.2ozFunction: MeasurementQuantity: 1 pc Package List:1 x Level BubbleNote:1. Manual measurement, please allow 1‑10mm error, thank you!2. The picture may not reflect the actual color of the project due to the differences between different displays.