Material ABS green Product dimensions L x W x H 15 x 8 mm manual mode about this item HIGH QUALITY MATERIAL - The product is made of ABS and acrylic with a special process. Beautiful design - transparent liquid on green or white background. The product is crystal clear. Clear measurements - It is easy to see the direction of measurement. Easy to carry - the horizontal bubble is very compact and can be carried. Scope of application - suitable for horizontal calibration of scales, electronic scales, PTZ and other equipment. Product Description Specification: Material: ABS plastic Measuring range: 306mm Precision: 10 Product size: 1.5 x 0.8 x 0.5cm. Packing List: 5*Horizontal Bubbles Note: Actual product color may vary from photo due to lighting. Product measurements may vary slightly.