Ahrex Fastach Clip: For fly fishermen who want to optimize their time at the water's edge, the Ahrex Fastach connector clip is the ideal solution. Revolutionizing the way you change flies, this little accessory lets you replace your lure in seconds with a simple twist. Designed for flies of size 2 and larger, it is extremely versatile, and can also be used as a base for mounting different types of tails on larger predatory flies. You can then connect it to the fly via a snap or wire. Available in two sizes, the Fastach Clip size 1 has a length of 14.40 mm and a thread diameter of 0.60 mm, while the size 0 measures 10.65 mm in length with a thread diameter of 0.50 mm. Both feature an elegant, durable nickel-black finish.