6 Per Pack 10" Length x 2.5" or 4.5" Width Stainless Steel Wire Core Extremely Durable UV Reflective 0% Water Absorption - Very Easy To Cast Used for Intruder, Pike and Musky Flies Blend of EPA(R) FIBERS, EPA(R) SILKY FIBERS, EPA(R) THUNDERSTRUCK SPARKLE and Natural Materials The goal with this brush was to create something that would keep a wide profile without adding bulk to the fly. The result surpassed my expectation. It&';s the perfect brush for big pike, musky and intruder flies. It incorporates a blend of EPA(R) FIBERS, EPA(R) SILKY FIBERS, EPA(R) THUNDERSTRUCK SPARKLE and natural materials for a perfect, lifelike, breathable brush.