Reusable And Flexible BURNDY Hook And Loop Straps Are A Unique Self-Gripping Fastening System, These Ties Are Specifically Used On Fiberoptic Applications, The TFV-V2 Flame Retardant Straps Are UL Listed Wire Positioning Devices (ZODZ), UL94-V2 Rated For Use In Air Handling Spaces In Accordance With The Necsection 300-22 (C) And (D), Perfect For Plenum Areas.