Sierra International Flame Retardant Split Wire Conduit 5/8" x 50' Boating Hardware & Maintenance Supplies I.D.: 5/8" or 15.9mm, Dist. Pkg.: 50' or 15.2m, Wt. "C": 2.94, Temperature range of +275 Degree Flame retardant Polypropylene is black with a blue stripe Provides chafing protections for wiring Systems Split longitudinally for easy access to harness Meets ABYC standard 8.15.19 and UL 94 V2