... : No. Item DescriptionHBM-1Acrylic LetterSurface: 3mm acrylic, Frame: 3mm acrylic,Backboard: 3mm acrylic, waterproof LED Thickness ... LED waterproof light , Thickness: 4cm HBM-4Stainless + resin letterSurface: Resin,Frame: 0.8mm #304 brushed stainless steel ,Backboard: 0 ... ,3 LED light, Thickness: 4cm HBM-6galvanized + resin letterSurface: Resin,Frame: 0.8mm galvanized sheet,Backboard: 0.8mm galvanized ...