This pack of 100 strong and durable plastic fixing nails is a must-have for installing all Worx LANDROID robotic lawnmowers. They allow you to extend your mowing area by simply installing the boundary wire and fixing it to the ground. These easy to install fixing nails require only a few tools - a rubber mallet is all you need to effortlessly hammer them into the ground and secure your robotic lawnmower's boundary wire. These high quality pegs are compatible with all brands that require the use of pegs, hooks or fixing nails for robotic lawnmowers. They are weatherproof and winter frost resistant and offer 360 degrees of durability.