Frio keeps insulin safe even in hot climates. Choose the product size that is right for you Large-Dimensions: 140mm x 180mm (5.51 in x 7.09 in) Holds: combos of pens, vials, cartridges: a) One pen and 15 x 1.5 ml cartridges OR b) One pen and 10 x 3 ml cartridges OR c) 5 disposable pens OR d) 4 x 10 ml vials (bottles)