Handmade spiral galaxy glass opal necklace pendant. Made from borosilicate glass and 99.999% pure silver fume. Those little specks that you see are not bubbles but small balls of pure silver. All the pendants are one of a kind. Approximate size: Diameter : 16mm Length : 21mm Glass Pendant comes with adjustable black wax leather cord in paper gift box. Default longest length is 70cm, you can let me know your desired length by inbox after purchase. Product pictures are taken under LED light, I try to have my pictures as true to life as I can but the colors may vary amount different monitors, if you want to see the product in details, please contact me for video. Thank you very much. FREE worldwide shipping by registered air mail from Japan. We send out product same day or next business day (weekend not included). Depends on the location, normally it takes 7-14 working days to arrive.