The Defenders Ultrasonic Mole Repeller is an eco-friendly, humane and inexpensive way to stop moles from burrowing holes in your lawn. It offers protection for up to 625 square meters. It uses solar power to encourage moles to move away from the area it covers, by emitting vibrations and sonic pulses, without harming them at all. It has an LED indicator on the topper, that is brightly coloured and highly visible so you won’t misplace it in your lawn or garden. It’s also completely weather resistant.