Brand: ToughTested. MPN: TT-4S-BT. Looking to secure your tablet or GPS while you drive? You need the ToughTested 360° Rotatable Tablet and GPS Boom Mount for 13 In. Tablets. This boom mount holder expands 4 ways and can fit tablets and GPS units up to 13 in. It features an adjustable arm which can fit in any cup holder regardless of the car or truck you drive. Color: Black.