vex mecanum wheel adapter

this is a vex or adapter to tetrix parts(ftc or other robots) it works with smaller wheels specifically made for the 4 in mecum wheels.

https://www.robotshop.com/en/mecanum-wheel-set.html?gclid=Cj0KCQiA-8PjBRCWARIsADc18TLFruCCK67vSdBj3u4gd6v009uBYr0yf0RL7YMc5JtxCmdR_y_skUEaApg-EALw_wcB