F-color via Amazon offers its F-color Magnetic Air Vent Car Phone Holder with Arm in Black for $9.99. Coupon code "9GN8I2Z3" drops that to $6.99. Plus, Prime members bag free shipping. That's tied with our mention from two weeks ago, $3 off, and the lowest price we could find. It works with horizontal air vents and features an adjustable swivel ball head that supports 360-degree rotation, four high-powered magnets, and metal hook mount. Deal ends July 23.