The smart packaging choice for shipping liquids or solids by any mode of transportation is Labelmaster's 4GV Boxes. These UN-certified boxes, also known as Variation Two boxes, are suitable for Packing Groups I, II and III liquids or solids. Made of 200# SW or 275# DW corrugated fiberboard, they have been designed, tested and certified in accordance with 49 CFR, ICAO, International Air Transport and IMDG/IMO requirements. They can also be used to ship items such as machine parts and batteries.To meet testing specifications, no more than the number of containers listed may be shipped in this type of box. 4GV boxes are a sure way for you to transport hazardous or delicate items safely and in compliance. For your added convenience, they are shipped flat for easy storage.