Small:

Dimensions: 10.75 in x 10.25 in x 11 in
27.31 cm x 26.04 cm x 27.94 cm

Medium:

Dimensions: 13 in x 13 in x 16.25 in
33.02 cm x 33.02 cm x 41.28 cm

Large:

Dimensions: 14.75 inx 14.5 in x 20.75 in
37.47 cm x 36.83 cm x 52.71 cm