This is a 2g (2ml) tube of Blue Threadlocker from Surehold. FEATURES: Locks threaded fasteners against loosening from vibration Fast curing for 1/2-3/4" (13-19mm) bolts Medium strength INCLUDES: 2g (2ml) tube of Blue Threadlocker from Surehold REQUIRES: Applying to bolt jxs 12/14/10 ir/jxs