Dekugaa Solar Snake Repellent for Outdoor Gopher Repellent Ultrasonic Get Rid of Snake Mole Gophers for Outdoor Garden Yard 2 Pack

waterproof & rustproof body allows for years. Emits a sonic pulse that penetrates soil every 180 seconds The vibrations and sonic pulses emitted by the repellent are harmless to humans, pets and the environment. It is safe to use it around children and pets. The harder/denser the soil, the better it works, as the sonic vibrations do not travel well through loamy soil conditions. Remove Sonic Spikes when flooding may occur or before ground freezes. To make the best use of the product, we strongly recommend an installation of one device every 20 meters.