What is the width of the 11" zip ties that vex sells? I could not find a width on the VEX website.
Uhh the ones that robosource sells are 1.5-2 times the width of the 4 inch ones 
The standard width of 11" 50lbs zip ties is about 4.8mm. All zip ties of this size should be the same width and compatible, and the last time I had zip ties bought from vex (2 years ago) they matched the standard size.
The 11" zip ties are 3/16" for Imperial system users…
Thanks for all the replies. I was just making sure that the zipties I had were legal 