Best Sports Supplements Nitric Oxide Amino Acid L arginine Hcl Powder , Flavoured 300g L arginine Powder by Package is 1-5kg with ziplock plastic bag inside,Aluminum foil bag outside.finally with waterproof bag. 6-15kg with plastic bag inside,Aluminum foil bag outside,finally with carton box. More than 16kg with plastic bag inside,fiber drum outside according to the extract quantity.