Weve listened to our fans and just released the latest editionCoiling Jig V4! Like before, with the double-sized top caps and the larger size, simply slip in any gauge wire, spin the cap away to your desired resistance and voila! And the Coiling Jig V4 Just Make Coil Building Much More Easier! The main changes are: 1. A silicone holder is added to store the parts. 2. A Wide slot is added to hold up ribbon and wire. The Coil Master Coiling Jig V4 6 in 1 is a great accessory to own!