Packing: 1 kilogram in Aluminum Foil Bag with two plastic bags inside; 25 kilograms in cardboard barrel with two plastic-bags inside; Net Weight: 25kgs/Drum Gross Weight: 28kgs/Drum Drum Size & Volume: 510cmX350cm, 0.08 cubic meter/ Drum or per customer's requirements. Storage: Stored in tight, light-resistant containers, avoid exposure to direct sunlight, moisture and excessive heat. Shelf Life: 24 months when properly stored.