KONMAY 50pcs 18'' Charms Mix-color Memory Wire Necklace Choker--Assorted 20 Different Colors Pack in 50pcs Length: 18'' The choker closed as screws Dia. of the wire: 1.0mm, but only fits the hole size in 3.0mm or bigger beads, or use with the bail or jump ring, then it will fits any sizes of beads Each Pack will have more than 15 different colors