The special feeding door at the front of the lid allows access for feeding and watering even when the units are stacked. This makes feeding easy and prevents stress since the unit does not have to be moved in order to access it. The angled ventilation provides an optimal air-flow at all times even when the unit is stacked. Ideal to transport terrarium animals or live foods Special feeding door Stackable for display or breeding purposes Side-angled ventilation slits Large door for easy access Clear plastic terrarium Breeding Box PT-2270 Small 205 x 205 x 140 mm 8 x 8 x 5.5 PT-2275 Medium 302 x 196 x 147 mm 11.8 x 7.7 x 5.7