The PERDIX game bird spiral feeder attachment has been designed for use in the PERDIX Game Bird Spiral Feeder to provide wheat to gamebirds. Unlike other spirals available, the PERDIX spiral is made in Britain from high quality tempered spring steel to prevent twisting and breaking in the field. It is also bright zinc electro-plated to prevent corrosion. Our spiral feeder attachment has an external diameter of 25mm (1″) and a total length of 110mm (4.3″). When used in conjunction with the PERDIX Post Mount, our PERDIX Spiral Guard can be fitted to prevent pests eating and spilling wheat from the spiral.