Bees love this feeder. The hole and cap are ridged to give the bees a foothold and there is a lot of room for sugar water.
This is an internal feeder so you can feed when the temperature is above 5' C and avoid robbing from other hives. Place the bottom hole of the feeder on top of the oval hole of the inner cover. Then protect the feeder with a medium super to hold the top outer cover of your hive.
Holds 1.5 gallons, almost 6 litres of syrup.