ATA Rated ATA (Air Transport Association) specification 300, category 1 is the highest standard for an airline transport container (a minimum of 100 common carrier trips). Category II has a minimum of 10 trips by air.
Built-in Wheels or Casters Includes either our 3SKB-CAST1 quick release 4" casters with mounting plates and hardare, or comes with heavy duty built-in wheels standard.