HMH Poly Tubes HMH Poly Tubes are a semi-flex polyethylene tube built for cold-water durability—perfect for steelhead and salmon tube flies when temperatures drop and you don’t want brittle tubing. They’re easy to cut, hold their shape well, and make a clean foundation for intruders, traditional tube flies, and modern composite-style patterns. Each pack includes 10 full-length tubes (cut into 1" sections you’ll get 4–5 dozen flies’ worth), and they come with clear hook-holder/junction tubing so you can rig your hook cleanly and securely. Semi-flex poly tube designed to withstand extreme cold Excellent for steelhead & salmon tubes (intruders, classics, and more) 10 tubes per pack = enough for 4–5 dozen 1" tubes Includes clear hook-holder / junction tubing Available in clear and a range of hot colors Size options typically include: Small (use a 0.041" mandrel/pin) Large (use a 0.062" mandrel/pin)