This soil spike makes easy work of installing rotary washing lines. Ideal for placing rotaries in solft ground, such as lawns, it fits 6 different sizes of centre pole. Diameters fitting are: 26mm, 32mm, 38mm, 40mm, 45mm and 50mm. It has a recessed cover so its not a mowing obstruction. The top cap prevents dirt and water, when no rotary is in place. Fits Minky "Compact", "Classic", "Rota Lift" and Rota Lift Plus" airers.