This gorgeous necklace is made with High Quality 18K gold filled paperclip chain with a beautiful CZ Micro Pave Heart lock clasp. This carabiner acts as both the focal and the clasp. You can add charms to the carabiner if you so choose. The carabiner clasp can screw open. This heart necklace is available in 2 color: Gold and silver, and 5 different lengths (18 is shown in the photos): 15, 16, 18, 20, and 24The links of the paperclip chain measure approximately 17mm x 7mm. The necklace is available in lengths from approximately 15” to 24” including the clasp.sku#H334