Designed to hold 02 module w/“D” or Jumbo “D” size tank. It fits many basic and advanced airway adjuncts and oxygen delivery devices. Non Toxic PVC, Id Windows for Labeling, Side and front pockets, foam lining, Velcro straps, reflective material, foam shoulder straps & more. Dimensions: 21Wx19Hx7D 4.5lbs Bag Only #G35008RE-Each UNSPSC#42171914