This black Explorer Cases 7641 Wheeled Hard Utility Case is designed to protect delicate equipment during transport and storage. A large carry handle provides easy handling, even when wearing gloves, and is covered in rubber for comfort under heavy loads. You can also extend its top handle and pull it behind you on the low-profile smooth-rolling wheels. The case is made from a copolymer polypropylene for resistance to impacts, temperature, and corrosion. An O-ring seal on the lid makes it dust and waterproof. The 7641 case is offered here empty, without an insert, to give you full access to the interior space.