... ,electric,remote control anti-weather anti-thelf 1,Structure of roller shutter.(1) End Cap, (2) Bearing Bracket (3) Ball Bearing, ... of manual and electric. 12, function: insulated, anti-bad weather, safe, quiet, luxury.13, packing: one set roller shutter be packed ... in a 16mm thinckness wooden case which don't need fumigation. Modern Roller Shutter Window