*CUSTOMIZATION OF METALLIC TAG WITH BRAND NAME AVAILABLE. - MATERIAL: 24 karats gold-plated stainless steel. - LENGTH: 51 cm + 5.5 cm / 20 inch + 2.1 inch (adjustable extension) - PENDANT MATERIAL: Natural healing crystals (Rose Quartz, Amethyst, Amazonite, Fluorite, Strawberry Quartz and Sunstone). - Each order includes a small dropper to fill the crystal bottle. - Hypoallergenic and Nickel-free. - Handmade. Beautiful natural crystals bottle necklace that you can fill with perfume, aromatic oils or moon water. These crystals necklaces can be opened and closed comfortably and surely the times that stones are made of natural stones carved in the shape of a bottle, each bottle is unique since they are made by hand with natural crystals. 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.