Panduit® Dura-Ty® Cable Tie Strapping Reels are weather-, chemical-, and UV-resistant for harsh outdoor power and communications applications. The durable locking mechanism, complete with double stainless steel locking barbs, provides a consistent, reliable connection and high-impact resistance and strength. Extra-heavy cross section, 50.0"L (1270mm), Tensile Strength: 1112, Bundles up to 189.0" (4800mm), Black, Includes 50 reels of strapping - heads sold separately.