DH Gate Model A080 Actual Measurements and Tips

I just bought our first CD ever, a model A080 from DH Gate … 07092.html and i’m curious if anyone has the actual measurements (ID taken with calipers preferably) for both cage ID and cage length? I’ve seen reviews claiming it’s real stainless steel but i won’t get too excited, if you own one and can confirm whether it is or isn’t please share. Any advice on using this specific device? I heard you can change the length by spreading the rings out or squishing them in, has anyone done that successfully? As mentioned before, this will be our first piece of equipment and i hope at least it lasts for a few months and gives us an idea what size to order the MM Jail Bird. Any thoughts or experiences with A080 would be greatly appreciated, Thanks!