Hello,
is any Non-Slip Woodworking Mat leagal? Or does it have to be from the offical vex site?
As the game manual says, only parts sold from vex or parts with the same I’d number can be used on your bot. This also applies to Anti-Slip mat.
Over the years, I’ve seen the exact mats, thick and thin, commercially available. The thicker was being marketed as a shelf liner. The issue is buyer beware as there are close but not exactly the same mats also available.