[FTC]: TETRIX Resource Set

[smcmahon]

We're a rookie FTC team this season and we're trying to figure out what we can buy to supplement the base kit. This boxed 'resource set' might be what we're looking for, but I just wanted to get some opinions and details on it.

http://www.legoeducation.us/eng/prod...ource_set/2100

Has anyone purchased this from LEGO Education? If so, can you tell me in more detail what's in there? I can't tell from their photo and lack of description what size those wheels are, or the length of those frame pieces. Assuming 4" and 11.3" ?