Journals and blogs discussion

Hello everyone, I’m new here! I’ve been browsing for a CB that’s similar to the CB2k/3k/6k models. While looking for a decent price, I noticed the Cb2k listed at $80, which seems like a bargain! The only thing is, I’m unsure about whether it will fit me. Since I’ve been following this site for some time, I recall seeing discussions where users mentioned maximum “length” limits for certain CB devices… but now I can’t locate them again:( Could someone let me know what the maximum “size” is for fitting into a cb2k or a cb6k?