Blue Lug designed these as a low version of our Bosco bar, hence Losco. They're similar functionally to our Choco bar, but with subtle bends only Nitto could do that make them so good looking. Two sizes: 48 and 54cm, both with 25.4mm clamps.
Photos are from Blue Lug's site, because they're excellent I didn't have time today. We'll get our own photos up shortly, I hope.
Recommended stem length for most bikes: 11cm. 10cm if you like them really close.
Yes, they work with both thumb and bar-end shifters. Made out of Heat Treated Aluminum so they're both light and strong.