Round Biothane Tracking Line Color:Red Beta PE-900 systems can be expanded

PE-900 systems can be expanded to two dog PE-902 system

Extremely durable

This material is very light and is designed for extended wear

Includes 2 double sided hook and loop strips for securing single or dual e-collar receivers allowing you to place receivers in any position on the dog's neck

Round Biothane Tracking Line Color:Red Beta PE-900 systems can be expandedMade from 1 4" Round BioThane Beta 520 Completely waterproof Available in 4 colors Break strength of 500 lbs Not intended for use as a tie out line [split] RedLine K 9 Round Biothane Tracking Lines are made with 520 Round Biothane Beta and do not absorb water or rot. With a break strength of 500 pounds, this material is both lightweight and durable making for an excellent tracking or nose work line. Biothane is the gold standard for all weather lines.