SmartFit Detectable Earplugs, TPE, Blue, Corded ORS NASCO General purpose grease for a General purpose grease for a wide range of applications It offers an excellent mechanical and shear stable lithium 12 hydroxy protection of moly and graphite Timken load of 40 lb Helps safely transport cylinders Semi pneumatic wheels will keep you running flat free Conforming Material Technology™ adapts to the shape of the surrounding ear canal when in your ear and returns the earplug to its original shape when removed Simplifies inventory control a single product can fit almost every wearer Blue color provides high visibility in detection Metal ring on stem detectable by automated equipment