This is a decorative frame. I really got to stop synthesizing these. But then again, people seem to like them, so heres another. There are a lot of square ones so I thought I would offer a round one now too!
A selection of simple celtic knots. As requested, I've now added each of the knots separately - nicknamed according to their position in the thumbnail (top or bottom row and numbered 1-3 from left to right). Enjoy!