THESE FIT THE RAZOR MX 350 or  MX 400. these are not the cheap ones that use a generic mounting system. Also we use locking collars to secure our wheels in place on the training wheels axle (unlike others who simply use a couple cotter pins which allow the wheels to wobble). We do not use undersized bar/steel for the wheels and cheap attachment hardware touted by others to be superior.

Buyer assumes all responsibility once item is paid and shipped. We do not accept any liability buy at own risk. Use responsible and be carful.