Use a 100% kid safe, humane approach to prevent your property from moles voles shrews gophers and destructive ground rodents. Rest easy knowing your entire lawn is protected even in rain, the mole vole repellent unit is waterproof & corrosion-proof.For optimal performance we recommend that during installation of the yard mole repellents be placed on every 96 feet on your lawn. Moles and gophers and other burrowing rodents are chased away unharmed.Mole repellers emitted 3-4s sonic pulses for every 30 seconds, it penetrates the soil and also forces pests to evacuate the area through which the sound is travelling. After which your garden will be free from rodents.In general, it need about 2-4 weeks to drive the Mole & Gopher away from your garden, Then your garden will be free of these nuisance critters after some weeks.Not effect people, animals or pets. No chemicals or poison is used in this process. Moles, gophers and other burrowing rodents and chased away rather than harmed in the process.Products from Botao's store