1-handed activation. fixed safety shield. Audible & tactile click confirming safety device activated. Color coded hub. Made USA 50/Bx 8Bx-Cs #833810-3ml 18x1” #833010-3ml 20x1” #833015-3ml 20x1.5" #833110-3ml 21x1” #833115 3ml 21x1.5" #833210-3ml 22x1” #833215-3ml 22x1.5” #833310-3ml 23x1” #833558-3ml 25x5/8” #833510-3m 25x1” #833515-3m 25x1 1/2” Latex Free UNSPSC#42142609