We can't seem to keep this perfect layering piece in stock. 16" + 2" extender. A n extra thick layer of 18k gold plated with stainless steel base. Available in 4 widths: 3mm, 4mm, 5mm and 7mm. 16” with 2” extender Hypoallergenic Tarnish Resistant The 3mm Jax does not come with an extender