This new generation trip line is constructed of multi-filament silicon coated Kevlar®, allowing great flexibility and ease of deployment while avoiding the hassles of metal trip wire. Compatible with most trip-activated devices. Comes wound on a reusable  new flexible plastic clamshell dispenser spool. Breaking strength exceeds 80 lbs. Color: Black which is compatible with any environment and almost completely undetectable. Length: 85 feet each.   Two rolls are in each order for a total of 170 feet.