This poly wire for your electric fence is lightweight and so easy to install, repair and splice. The Fi-Shock Poly wire, 6-Strand comes on a 656 ft (200m) spool and contains 6 strands of electrical conductors. It has a breaking load of 180 lb. This is lightweight, convenient and will not rust. Note: This is not designed to function under extreme tension and must be used in conjunction with a permanent fence.