Under wraps for now, like all good birthday presents, but coming out of their bubble wrap and being installed on Worcester Boulevard tomorrow.

That's the strange thing about life behind the scenes at the Gallery. Once upon a time, an artwork arrived in the building and that's where it stayed for some time. These days, working in the public domain, its arrival in-house is just the prelude to another journey -- back out into the world.

Twice as nerve-racking? Thrice, at least. But we think the pair of fellows under wraps here can handle it. There's steel under that plastic. Show you tomorrow...