... * Color,blue& red * Material,acrylic * Name, precision measuring* Item No.,RB-SV2006,* Product name,bubble level ... Color,purple,blue,red and so on* The precision is 60'+/-10',the air bubble will be ... air bubble could be aggregated in 1 second after collision,* The vial could bear ultraviolet radiation,* ... The vial will be like the original after being experimented under -20°C with 12h ...