DEPENDABLE : Rotary washing line spike can be used on any bracket, rod, base with a diameter of 40 mm or 32 mm. You can use galvanized steel directly, If the diameter of your rod is 40 mm,. If your rod is 32 mm, you can insert the plastic adapter into the ground spike EASY TO INSTALL : No need to use concrete. Quite easy to install garden airer spike. Find an open space, soften the soil, make hole, insert your steel spike, put some wood on top and gently hammer it so that it goes down COMPATIBILITY : Supports washing line spike 40mm when you use just galvanized steel and 32mm ground spike when parasol base insert into plastic adapter. Use any pole, stand, base of either 40cmm or 32mm in diameter WHOLESUM PACKAGE : 1 galvanized metal soil spear 40cm long and 40mm diameter support. 1 plastic adapter 19cm in length that can have a 32mm pole. The cap might give hard time, therefore put some sheet on top of it when not in use MULTIPURPOSE : Same washing line pole support can be used for Bird Feeder, Parasol base, Dryer, Airer, Umbrella, Flag pole at ground, garden and beach etc GUARANTEE : We have put our level best in producing quality. We provide friendly customer support. Still, you are covered with our no question asked, on the spot return or refund