Stem mount Adapter for 1/2" & 11/16" Holes with 15/16" ball for Phone Mounts with Articulating mounting system

Constructed from sturdy materials, the Stem Mount Adapter is designed to fit holes of 1/2" and 11/16". Ball is 24mm (15/16") diameter. Perfect for powered sports Vehicles, it arrives with an Allen wrench so you can easily assemble it! 

RPSTEMMOUNTADPT