Exaco Trading  30026 Universal Ground Socket
This universal ground socket accessory is designed to fit five different size poles 1-1/2-inch and up to 2.2-inch in diameter; good for just about any rotary clothes line, umbrellas and sports nets. The industrial strength materials make it possible to turn stake deep into heavy soil, especially good for beach sand. Socket includes a specially designed aluminum handle with turning socket to easily screw the stake into the ground and just as easily remove it again. It offers great stability, as it digs 16-inch into the ground but the bottom half of the socket can be removed is there are rocky soil conditions. Because of the special screw mechanism, this stake goes totally into the ground and will not stick out, which makes it safe when mowing over it with a lawnmower. Stakes measures 6-inch in diameter and 16-inch long.