It's big, it's round, it's good.

For movie buffs, I take a quote from a superhero: "It's big, it's round, it's good."
I think we can hardly do more synthetic: 45 cm Perfect for large tours, round for better air circulation, locking to avoid false manipulations but it is true that once installed, it is rare change all that often.
I'm not a fan of tuning but one could imagine other colors than black admittedly simple but austere.
Packaging is a bit light (protecting caps), but nothing too bad.
For the rest, RAS, everything is fine.