The RX Series or Roto-X storage and shipping containers, manufactured by SKB Cases, are designed for all-purpose transport. Economically priced, they are ideal for shipping a variety of gear like tools, scientific instruments, machine parts, sporting goods and first responder equipment. The case body is rotationally molded from tough polyethylene for strength and durability. RX Series cases feature heavy duty twist latches and catches, spring-loaded lift handles, stacking lugs and optional swivel casters. Select from 20 sizes. Contact Sierra Cases for foam and interior options.