Pegs for Mowers:The robot mower accessory set include 100pcs mower wire spikes, each peg height is 8.5cm, for attaching the robot mower boundary cable to the lawn. Sturdy Material:Our high-quality robot lawnmower pegs are made of an extremely robust and weather-resistant plastic. This makes the pegs extremely stable and durable. The head of the ground spikes is so sturdy that it cannot break, even with tightly stretched cables. Universal Size:The boundary wire pegs for cable diameters from 0.1 to 3.8 mm, universally applicable and suitable for all common manufacturers such as: Gardena, Husqvarna, Worx, Bosch, AL-KO, Robomow, McCulloch Stiga, Wolf Garten and many more. Easy Installation: The pegs for robotic lawn mower only needs to be hung on the hook head of the nail hook. The ground securing pegs shape of the head makes the line not easy to slide out. The tip of the nail is easy to quickly and safely insert into the ground. It is recommended to use a rubber hammer to easily knock it