Pls aee the many size of level vial below:

ITEM(NAME) Diameter(MM)   High(MM)   Precision  
HD-WX0855 Diameter=8     High=5.5
HD-WX1006 Diameter=10    High=6
HD-WX1106 Diameter=11    High=6
HD-WX1206 Diameter=12    High=6
HD-WX1207 Diameter=12    High=7
HD-WX1275 Diameter=12    High=7.5
HD-WX1506 Diameter=15    High=6
HD-WX1508 Diameter=15    High=8
HD-WX1808 Diameter=18    High=8
HD-WX1809 Diameter=18    High=9
HD-WX6010 Diameter=60    High=10

We are JinHua Hengda tools Factory in China. We supply spirit level vials, Tube level, circular levels, Glass level, Aluminum levels, Angle Square, Builder Line, Folding Ruler, chalk line reel,stationery scissors,Tape Measures, Safty Helmet,key chain ect with good quality and low price.