*CUSTOMIZATION OF METALLIC TAG WITH BRAND NAME AVAILABLE. - MATERIAL: 24 karats gold-plated over a base of stainless steel. - LENGTH: 39 cm + 5.5 cm /  15.3 inch + 2.1 inch (adjustable extension) - PENDANT MATERIAL: Natural healing crystals (Labradorite and Amazonite). - PENDANT SIZE: 2 cm * 3 cm / 0.7 inch * 1.1 inch. - Each order includes a small dropper to fill the crystal bottle. - Hypoallergenic and Nickel-free. Dainty a luxury natural crystals bottle necklace that you can fill with perfume, aromatic oils or moon water. These crystal necklaces can be opened and closed safely and comfortably. The natural crystals have been carefully carved into the shape of a bottle, each bottle is unique as they are carved by hand. The chain is made of 24 karat gold-plated stainless steel, which makes it resistant, hypoallergenic (friendly to sensitive skin) and friendly to water. You will not have problems of color change or tarnish, besides that it is Nickel-free.