Check the listing for details. 4 pk Sweeney’s S9014 Mole and Gopher Solar Spike. Condition: New. Listed at 58.99 USD. Sweeney's Mole and Gopher Solar Spike Safely Repels Rodents Sweeneys Solar Powered Sonic Spike offers a poison-free way to drive away moles, gophers and other burrowing pests from your yard. Every 30 seconds, ultra-low frequency sonic pulses penetrate the soil. The sound is extremely irritating to moles because they are virtually blind and thus overly sensitive to sound and vibrations. The sonic pulses encourage underground varmints to vacate the property and also discourage return visits. The sonic spike treats up to 7,500 sq. feet. Easy-to-Use A solar powered panel on top of the spike charges the battery for up to 5 days; no batteries are required. The waterproof spike is built with a convenient mow-over design for ease-of-use. Allow 7-14 days before ground rodents start to move away from the area. Details: Sonic Spike that repels moles and gophers without chemicals or poisons Produces a sound that's highly irritating to moles and gophers. Emits a sonic pulse that penetrates soil every 30 seconds. Includes removable battery sleeve for easy battery replacement Treats up to 7,500 square feet Not available for sale in CO, HI, NM, or PR