If you have a portable basketball hoop and want to convert it to an in-ground system, there are a few things you need to do. First, you'll need to purchase an in-ground conversion kit. These kits are typically made of metal and include all the necessary hardware for converting your portable hoop. Next, remove the backboard and pole from your portable hoop. Using the in-ground conversion kit, follow the instructions for installing the new backboard and pole into the ground. Once everything is installed correctly, you'll be able to enjoy shooting hoops on your new in-ground basketball system!