/Material/ 925-999 sterling silver /Butterfly Size / Approx. 20mm(W) x 12mm(H) /Necklace length/ 16" 18" 18" ＋2" extension chain /Production time/ Since it is a handmade product by me, it requires 10 working days(Not incl Sat/Sun/Public Holidays) if there's no available stock. Having said that, if you need it by certain day, please don't hesitate to contact me and we can communicate from there. /Shipping days/ Asia usually between 2-7 days. International is between 7-14 days. For more details please kindly contact me. /Packaging/ Hard and thick paper jewellery box with black velvet sponge inside. Box cover carries Green Rivor logo of three girls playing under a tree. /Shipping cost/ Free shipping via Hong Kong Post registered post. If you prefer other shipping method, please kindly contact me. *Please note that it is a handmade product, so each one will turn out slightly different from that in the picture.