Flattened, tangled knot. Immediately - I'm thinking earrings! Open design has lots of holes for attaching.
Red bronze - a warm, almost coppery looking goldy colour. There is not a lot of this around yet - your best bet for finding jumprings to go with it is to go with an antiqued copper for now. Lead, nickel and cadmium free.
Made in Israel. 13mm x 25mm By the each.