The Fast Limit Kokanee Dodger produces flash and vibration that attracts Trout & Kokanee when rigged in-line ahead of lure, squid or bait at troll speeds ranging from 1 to 2 MPH. This product features solid-brass construction, welded ring attachments, quality swivels, and handy snap that facilitates quick leader changes. Optimum troll speed for Kokanee is often 1.5 MPH. Leader length, distance from dodger to lure, has everything to do with the amount of action the Fast Limit Dodger will impart to trailing lures or bait. When rigging, try short 8-to-12 inch leader for Kokanee; and 15-to-20 inch leader when trolling for trout.WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov