Check the listing for details. Molemax Mole & Gopher Repeller Sonic Spike Bonier Pack Of 2. Color: Green, Condition: New. Listed at 15.99 USD. The Molemax Mole & Gopher Repeller Sonic Spike Bonier is a set of two solar-powered pest control devices designed specifically for outdoor use in yards and gardens. These ground-based repellers emit sonic vibrations to deter moles from digging in your garden, providing a humane and environmentally-friendly solution for pest control. The green color and manual operation make them easy to install and operate, while the solar power source ensures a cost-effective and efficient method for pest repellent.