Snap-on 1/4" Drive 7" Flex-Head Ratchet, FM385. This Snap-on Ratchet is the 'Hard Handle' type - which I much prefer and think are much the best design - and is 7" (178mm) in length. I bought the Ratchet a few years back but I can't recall using it much at all, it's in excellent used condition - hopefully as you can see from the pictures.
eBay