The HMH Large FLY TYING TUBE FLY CONES in Black are designed to fit 1/8" OD tubing and come in a pack of 10. These tube fly tools are manufactured in the United States by HMH, a well-known brand in the fishing industry. The cones are ideal for fly tying enthusiasts who create tube flies and are looking for quality tools to enhance their fishing experience. This is new old stock from our fly shop.