... manual,electric,remote control anti-weather anti-thelf 1,Structure of roller shutter.(1) End Cap, (2) Bearing Bracket (3) Ball Bearing ... , Performance date:3, Widely used to family, school, garage/balcony of villa, factory and shops etc.4, customized size as need ... comebine one of manual and electric. 12, function: insulated, anti-bad weather, safe, quiet, luxury.13, packing: one set roller shutter be ...