we will use Aluminum foil bag or as customer's required. Keep in dry and cool place for  the storage,our price includes the shipping cost already; you need not pay for any tax or others,you are welcome to order sample before placing bulk order.We will send the sample directly to your door by courier,Usually , we will ship for you as soon as paid,or 1-2 days after confirm your payment .After shipping 3-7 days you can get products. We also has built up a excellent, professional sales team, well experienced in international marketing, efficiently providing a range of products and professional services. Best-selling products: BK-EBDP Dibutylone HEXEN 4-CDC 4-CEC 4-MPD 4F-PHP MD-PHP 4-CPRC A-PPP 4CL-PVP 5F-ADB FUB-AMB 5f-mdmb-2201 2FDCK BMK