4.0mm X-TEND is used for the severest and most difficult projects where extreme strength and durability is required. Applications include miltary and public safety, elephant and hippo enclosures, automobile and truck protection. Both tinned copper seamless ferrules CCX Series) and AISI 316 stainless seamless ferrules (CXE Series)are available. Refer to our Project Gallery for project photos or our Tech/Specs section for full 3-Part specifications or to download a catalog