Merritt Top Mount High Side Box, Smooth Door 16″ x 12″ x 90″, Bare Metal Model 710129-221 8 3/4" you need a ball mount

you need a ball mount that knows how to handle itself when the going gets tough

All the parts you expect including an inline fuse (no one wants an electrical fire)

150 psi Open

This solution is ideal for mounting smartphones

Included adjustable 3rd brake light bracket

Merritt Top Mount High Side Box, Smooth Door 16″ x 12″ x 90″, Bare Metal Model 710129-221 8 3/4" you need a ball mountMerritt Top Mount High Side Box, Smooth Door 16 x 12 x 90, Bare Metal Model 710129 221 Fully accessible for all your tool storage needs with protection from the environment. Built with a compression seal Heavy duty shocks keep the lid closed and assist when opening Clamshell lid for easy and full access, opens 90 degrees 2 Locking T Handle Latches Lights, Trays, and Dividers available Commercial grade aluminum Powder coat finish Mounting hardware