... door 1.Gap:50-60mm,60-70mm 2.Colour:grey 3.Certificates:FCC,CE,ROHS The magnetic contact for roller door with ... FCC,CE and Rohs overhead door contactMetal housing,ABS housing for magnet ... for harsh environmentGap:50-70mm , wider gap can be adjustedSwitches and magnets avaiable seperatlyColor::greyPacking:1sets/bag, 60sets/CTNGross weight:22KGS ...