Glass level bubble Cylindrical glass level bubble The cylinder has a standard bubble at one end, high definition transparency, and the size and accuracy can be customized according to the user. High-precision glass long blisters, highly transparent, with a shelf life of five years, can rotate around the 0,0² axis to maintain accuracy, angle values from 60/2mm-2³ /2mm products are widely used in theodolites, spirits, compasses, electronics Weighing, total station and other photoelectric instruments. Universal glass level bubble Material: Boron. Liquid color: green, red, transparent. urved glass level bubble