Glass Picture Frame - whats it called and where do I get it?

[itsallyellow]

I was in an art show at Leicester De Mont uni not too long ago. Some of the pictures they had on show where in a solid sheet of glass backed by another sheet of glass that was held together by two small cylinder(ish) shaped clips that also doubled up as attaching it to the wall. These were the only things on that held it together. I was wondering if there was a name for this and where I could obtain them from.

Thanks

IAY

[Jomes]

The only ones I have seen like this are held together using magnets - Muji and Habitat sell them (or did the last time I was in there)