18k Gold Adjustable. 5.5mm. 16” Adjustable to 15” & 14”18" Adjustable to 17" & 16"20” Adjustable to 18” & 16”24" Adjustable to 22" & 20"32" Adjustable to 30" & 28" Our Charms and Coins are designed to clip through the links of this chain, so that charms remain stationary.  Made and hand-finished in LA.