16mm 19mm 22mm on off start key-operated switch stainless steel metal electric ignition key switches for rolling shutter 1: Neutral packing : plastic bag for goods+ inner box bubble+ inner box +carton 2: Upon customers' request, but the price is different with neutral packing 3: Carton size: 28*23*21,28*23*34,42*23*32,51*29*38 4: 40 pcs/box,6boxes/carton,10boxes/carton,15boxes/carton,25boxes/carton