Standard Pack = 1 piece(s). Locks are insulated to protect workers from shocks when the key is Inserted. They are also six-pin precision-machined for more unique key cuts and better tamper resistance. Locks are compact and lightweight, plus they resist impact, temperature, chemicals, and corrosion. Their non-conductive, non-sparking bodies feature ribbed designs for easy gripping and hand-ling too. They measure 1 3/4"H x 1 1/2"W x 13/16"D body with 1 1/2" x 1/4" shackles and come with one key.