The Mann Lake 8 Frame Top Feeder comes completely assembled and ready to use with the wood super. Featuring a galvanized steel safety screen to prevent drowning of bees, this feeder is constructed of a single piece of heavy-duty plastic to provide a no-leak reservoir! There is no comparison to the strength and durability this feeder provides over foam top feeders. Fill the feeder without opening the hive. Holds up to 3.2 gallons (12.11 l). One piece construction prevents leaking.