Volume: 20ml 30ml 40ml 60ml Material: Black Glass Usage: Essential Oil, serum, essence Surface: Deco/hot stamping/silk printing/labeling… customized Packing: Carton Certificate: ISO MOQ:1,000 pcs Samples: Sample is Free, we only charge the shipping freight. The black color of the dropper bottle is the original color, it’s black glass. With heavy bottom, and a classic cylindrical shape which makes the bottle upscale and mysterious. We can …