Bonide 61119 Solar Powered Molemax Sonic Spike (3) ea Bonide 61119 MoleMax Mole & Gopher Sonic Repellent Spikes / Stakes Uses Chatter Technology To Mimic The Alarm Sound Made By Moles & Other Burrowing Animals When Predators Are Present Solar Cell Installs Flush With Soil Surface To Protect From Mowing Damage Charges During Sunlight Hours & Can Work For Days On A Single Charge Will Not Harm Animals, Sonic Repeller Works Year Round, Made in USA