Hi Forum,
Wanted to get the official word out there regarding rubber band sizes. For the past year I have been purchasing parts from Bricklink (in order to build all Lego Technic Sets). One of the part types I see a lot of inconsistency buying are rubber bands (especially rubber bands for older sets). For example, I have purchased rubber band part: x264 from five different vendors and I have received inconsistent sizes. Some seem to have sent me x137 instead of x264, but I am not really sure. Now I am really confused, and want to get your guys opinion about rubber band sizes and what is considered official (to the best of people's knowledge). I have attached a picture of what I believe are all the sizes used on Lego Technic sets. Let me know if I am missing any rubber band sizes or if these are incorrect. I wonder if x264 is the same as x137 and there are natural size variations? Thank you everyone for their input!