Tough-Charge Waterproof Wireless Charging Holder With Charger. Waterproof Qi wireless phone charging cradle features spring- loaded RAM X-Grip technology and 10W maximum output. Kit for motorcycles includes wireless cradle, B size diamond ball base, and hardwire charger; attaches to B size double socket arms. Made of powder-coated, marine-grade aluminum, stainless steel components, and high-strength composite for durability and reliability in the most demanding environments.