The length can be easily adjusted by sliding the silicone-filled beads inside. Also, by removing the chain from the silicone beads, you can also put your favorite charms on the necklace ◎ Chain width: Approximately 1mm Chain length: Up to 45cm ◎Material◎ S925/18kgp ◎Color◎ Gold ※Price is for one item. ※Please contact us if you wish to purchase in bulk [10~] ☺︎ ✴︎This material is recommended for those with metal allergies as it uses almost no materials that are likely to cause allergies.