Each lunch box set comes with one large and two small recyclable, bpa-free plastic containers, detachable front and back lids, and a custom-built icepack.  Boxes have removable cover plates illustrated with all sorts of kid-friendly themes. All pieces are dishwasher safe, except the cover plates, which are easily removed for cleaning. Outside dimensions are 10 x 7 x 3 1/2 (25.4 x 17.7 x 8.8 cm).