Knight & Hale Duck Call w/Velvet Carry Bag Md: UHT230, At the heart of these calls is an exclusive patent pending bone reed, which never sticks to the tone board due to moisture, and is super easy to blow. Plus, it produces the sweetest duck talk imaginable. The threadlock screw in system (made of hand turned acrylic) holds the two pieces securely, which means you never lose another insert. A leather lanyard is included along with a velvet bag. Model - UHT231 - For those waterfowlers who prefer a double-reed call, Knight & Hale's Threadlock double reed duck call is the ultimate. It features the patent pending Bone Reed for easy calling and trouble free calling, as well as the threadlock screw in system that tightly locks the two barrels together, making certain the two pieces remain together whatever the conditions. Leather lanyard included along with a velvet bag., Type: Single Reed T-Lock Duck Call Species: Duck Material: Acrylic, Manufacturer: KNIGHT & HALE GAME CALLS, Model: UHT230