French wire is used in the same way as wire protectors, except you cut it to the length you need! A sure way to prevent your thread and string from wearing away at the clasp and ends. All you have to do is cut your french wire to length (just enough to go through the clasp and have both ends touching) thread your string through the wire and then thread your string and french wire together through the catch or clasp. Simple! This also is a great way to strengthen the ends of your necklaces. Quantity: 1 Pack of 35cm (14") Size: Fine - 0.7mm, Medium - 0.9mm, Heavy - 1.1mm