The Rite CerMag brings together extra length and a hard-wearing ceramic tube, making it the bobbin of choice for streamers, saltwater flies, and other long-shank patterns tied with tough, heavy thread. Made in the USA, it pairs surgical stainless steel with the patented Rite tension system so your set drag never drifts mid-fly. Key features Surgical-quality stainless steel with a zirconia ceramic tube insert Ceramic bore resists wear and helps prevent heavy thread from cutting Extra length gives you reach and leverage on long-shank hooks Patented high-pressure click drag holds 2 to 16 ounces of tension Excellent for spinning deer hair and cranking out hefty patterns Tie your streamers with a Rite CerMag from Ed's Fly Shop, 432 E Main St, Montrose, Colorado.