Safety and environmental protection - Harmless to the environment, . Eliminates the use of mole traps, mole or mole . No molehills will appear in your yard - Solar Mole Repellent is an environmentally friendly way of minimizing damage to your farm, garden, lawn or yard caused by moles, voles, shrews, gophers, and destructive ground rodents Covers up to 7,000 Sq. Ft. 1 Pack mole repellant spikes will cover approximately 40 feet in radius, an area of 7,000 square feet. Emits sonic pulse every . This is a piercing Ultrasonic pulse and vibration that will penetrate the soil underground, which will not physically harm these , only let them feel uncomfortable and escape. Efficient Solar Powered - A high- solar panel is built in the solar mole repeller. The battery will recharge from the solar panel automatically. A full solar charge in full sunlight for around 4 hours will enable the repellent to operate for 4 days even in unfavorable weather without interruption Material: ABS Color as shown Package Contents: 10 x Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.