F-color via Amazon offers its F-color Magnetic Air Vent Car Phone Holder with Arm in Black for $9.99. Coupon code "UQ9UPKBY" drops that to $6.99. Plus, Prime members bag free shipping. That's tied with our February mention, $18 off, and the lowest total price we could find. It features an adjustable swivel ball head that supports 360-degree rotation, four high-powered magnets, and metal hook mount. Deal ends April 21.