You are purchasing on 4 oz. of Ultra Pure, Reagent grade Mannitol (80-100 mesh fine) . YOUR SAMPLE will be bottled in plastic. Buyer assumes all liability for the use of this item. Buyer agrees to use this item in accordance with all local, state, and federal laws. This is for laboratory and scientific use only! NOT for food or drug use. Shipping will comply with all USPS regulations. Item is not regulated by the DOT. Label variations may occur.