Solexx® 15" Greenhouse Tie Down KitDESCRIPTION Keep your greenhouse safe and secure in strong wind with the easy to install kit. Twist the 14 1 2" tie down anchors into the ground next to your greenhouse and attach the J hook to the greenhouse frame. Turnbuckles connect the frame to the anchor. Easily disconnects should you want to move your greenhouse. Attach anchors every eight feet. 30" long anchors are available for large greenhouses or going into sandy soil ground.