Patinated solid copper folding clasp

The folding clasp is a small clasp that still fits around a large ring. It is also very easy to use for bracelets because it is easy to close with one hand. When closed, the clasp is 13mm by 3.4mm and fits rings with a
Wire thickness up to 2mm in. Please note: this clasp is (partly) patinated and therefore has dark spots. The clasp can be made shiny copper again by polishing it with a mild acid on a sponge. Copper polish or a vinegar solution work well, but lemon juice or even tomato ketchup are also suitable. Make sure you rinse it thoroughly with clean water to combat the odor.