Ellassay Ultrasonic Mole Repellent Solar Powered 4 Pack Sonic Mole Deterrent Spikes,Snake Gopher Vole Repellent For Lawn Garden & Yard,Gopher Deterrent,Groundhog Repeller Introducing the ELLASSAY Ultrasonic Mole Repellent Solar Powered 4 Pack Sonic Mole Deterrent Spikes, Snake Gopher Vole Repellent for Lawn Garden & Yard, Gopher Deterrent, Groundhog Repeller. These powerful solar powered mole repellents work by emitting low frequency pulses that penetrate through the soil and discourage them from entering the protected area. They are humane and safe around children and pets, with a coverage of up to 7000 square feet. Victor M9012 Sonic Spike Mole And Gopher Repellent,…