Unbreakable, watertight, dustproof, chemical resistant and corrosion proof. Offers total protection for your equipment. Constructed of ultra high impact structural copolymer. Black finish. Its exclusive 1/4" polymer o-ring and ABS latches seal perfectly. Includes an automatic purge valve for quick equalization after changes in atmospheric pressure. High density foam for total subjection and protection against impact, vibration or shock. A nameplate (included) can be personalized. Exterior measurement 13 3/8" x 11 5/8" x 6". Interior measurement 12" x 9 1/16" x 5 3/16".