The Pelican 1510NF Carry-On Case in Black without Foam is an unbreakable, watertight, airtight, dustproof, chemical-resistant and corrosion-proof hard case that can be used to carry and protect your equipment from the elements. It is made from ultra high-impact structural copolymer for strength and durability. It has a 0.25" neoprene O-ring and includes an automatic purge valve for quick equalization after changes in atmospheric pressure. It has a hinged case with double ABS latches that seal perfectly and padlock protectors that provide added strength and extra security against cutting and theft.