Fine Tip Permanent Marker, Black, 144 CA ORS NASCO Exhalation valve HandyStrap® with buckle allows Exhalation valve HandyStrap® with buckle allows mask to comfortably hang around neck when not in use Soft foam face cushion eliminates pressure points for added comfort Ventex® valve lets the hot air out faster so workers breathe easier and use fewer masks Perfectly mated laser heat treated cutter Knife and anvil style cutting edge to ensure perfect mating and superior cutting edge life Constructed of high carbon C1080 steel for superior performance Permanent alcohol based ink that is fade and water resistant Pocket clip for portability