These are Deep Brood Frames suitable for a National Hive. This offer is for a set of 10 deep brood frames for a National Bee Hive. Please note this does NOT include the Wax. The Deep brood frames do not fit our standard National Hive (which comes with a standard brood box) but an addition for those beekeepers who like a deeper brood box – the Deep Brood box would need to be purchased separately. Size: 14in x 12in (35.5cm x 30.5cm).