Mack's Lure Trolling Snubbers - Trolling Snubbers are designed to act as an in-line shock absorber when a fish strikes, minimizing the chance of losing the fish when it grabs the lure. 50 lb test monocord tubing inside. Designed to act as an in-line shock absorber when a fish strikes. Sizes: Diameter 1/4in./4.5in. length and Diameter 3/16in./4in. length Available in 2-packs 50 lb test monocord tubing inside. Available in Blood Red, Grasshopper Green, and Natural Amber.