Snake Repellent for Yard 10 Pack, Ultrasonic Mole Repellent,Solar Powered Gopher Repeller Sonic Mole Deterrent Spikes, Snake Gopher Mole Vole Repellent Outdoor for Lawn Garden & YardBrand: Tirgo Color: Yellow Features: How it Works Powered by solar panel, this solar mole repellent emits 3 4 seconds every 30 seconds to drive away moles gophers snakes. Recommend an installation of the yard mole repellents on every 96 feet throughout your lawn for optimal performance Easy to Use Just insert this gopher repellent stake in yard, lawns or garden which can get sunlight during the day. And turn it on, then it will protect your garden