1)designed to hold a 'd' sized oxygen cylinder 2)strong zips and tough carrying straps 3)included are numerous velcro secured, colour coded internal pouches 4)drop down front pockets incorporate clear pouches for storage of airways and intubation equipment 5)material: 1000d nylon in black 6)extensive hivis prismatic striping 7)dimensions: 50.8 x 66 x 20.3 cm (20"x 26" x 8") 55*45*55cm, 4pcs/case, g.W./case: 12kg, n.W.: 10.4kg