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6mm Diameter Spirit Level (5pcs)
Very small (6mm) vial bulls-eye spirit level, perfect for setting up flybarless units and anything else that you want to make sure is level in all axis. All you have to do is get the bubble inside the center circle then your item is perfectly level all round.
Specs:
Diameter: 6mm
Height: 4.3mm
Weight: 0.15g