Easton L Square - Black
Easton L Square brace height gauge
Well made, but a slightly annoying design
I ended up buying this, as on the day I was there Merlin didn't have any of their own t-squares in stock.
It works well once you get used to having to off-centre it to measure things. However, because it's off-centre, it tends to have the near clip fixed to the serving, but the far clip on the string itself, with a much looser hold to secure it. This leads to an 'is it really that' measurement on my recurve.
On my horsebow however, it works wonderfully!