The PERDIX Spiral Feeder Guard is designed to be attached to our Post Mount to prevent unwanted mammals and birds from taking grain. The two 2mm olive drab electroplated steel plates shield the spiral from rats, badgers and deer but allow game birds to peck the spiral through the gap. The width of the gap can be adjusted from 26mm to 38mm. A smaller gap will only allow partridges to feed from the spiral. The guard is easily attached to the post mount using the two 16mm bolts and wing nuts supplied. Designed and tested by Perdix and manufactured in Great Britain.