The BT9LH-L0 Dome-Top® Barb Ty, Features A Unique Patented Design With Its Round Smooth Edges. Paired With The Stainless-Steel Locking Barb, These Cable Ties Provide Consistent Performance, Reliability and Infinite Adjustability Through The Entire Bundle Range. Light-Heavy Cross Section, 30.7” (780MM) Length. Appropriate For Indoor/Outdoor Use, Made Of Weather Resistant Nylon 6.6 With High Resistance to Ultraviolet Light, Are Black In Color and Come In Packages Of 50.