Molehills will not appear in your deck. Solar Repellent Topos is a friendly way to minimize damage to your farm, garden, grass or patio caused by moles, mice, musadillas, stews and soil-destroying rodents. 7 square foot coverage. Set of 10 mole repellent spikes that cover approximately 70 feet across the radio, an area of 7 square feet. Beep once every 15 seconds. This is a drilling ultrasonic pulse and vibration that will penetrate the ground underground, which will not physically damage these pests, let them feel uneasy and escape. Safe around children and pets: chemicals or poison are not used in this process, harmless to the environment, human beings and pets. Eliminates the use of mole traps, mole kills or mole poison. The Moles repellent emit 3-4 second sonic pulses every 30 seconds, penetrate the ground and also force the pests to evacuate the area through which the sound travels. After which your garden will be free of rodents. It works with efficient solar energy: our