This versatile best selling feeder comes complete with a 10 spike for use as a ground feeder and a 16 pole with a loop if you want to hang it alternatively using the adaptor supplied it will fit the meripac 2 feeder pole the round sanctuary cage simply slots onto the banquet hall and prevents larger birds from wolfing down the food before the smaller ones have a chance the clever protective roof is also height adjustable when the sanctuary isnt fitted 33cm 13 in diameter it has base