
Lawn mower spike: A ground spike designed to be inserted into the ground and equipped with a hook for attaching the boundary wires of a robotic lawnmower. There are 100 ground spikes in a set. Stable head: The head of the ground spike is so strong that it will not break even with tightly stretched cables. The ground spikes are made of very stable plastic. Easy to install: The boundary wires simply hook onto the hook-shaped heads of the ground nails. The shape of the head prevents the wire from slipping. UNIVERSAL SIZES: Our ground nails are made in universal sizes. They fit products from all manufacturers. WEATHER-RESISTANT AND DURABLE: The robot lawn mower's perimeter cord nails are strong and weather-resistant. They can last for many years without needing to be replaced. Ideal for permanent installation.