By using a ground sleeve, you increase the lifespan and durability of your post An easy and effective way to install posts into the ground Designed to fit 1 5/8" posts Made from durable and high-quality steel that has been powder-coated black Simple to install Pack of 4 The in-ground post sleeves are designed to make installing a post easy and provide an option to be a temporary installation. The pointed edge makes installing the sleeve into the ground easier and removes the need to dig a post hole. A ground post driver tool and mallet are the only things required for installation in the softer ground; otherwise, a ground sleeve auger may be necessary. The sleeves will fit a 1 5/8" OD post. To install, first, insert the driver tool in the top, hammer the pointed end of the sleeve into the ground, and simply slide the post into the sleeve. This quick, easy, and temporary installation process provides a variety of uses for various applications.