This clasp is made from a sheet of copper - I use many metalsmithing techniques to fabricate these clasps, now available for your use:
May include: sawing, disc cutting, dapping/doming,hammering, filing, antiquing, soldering, shaping, wire wrapping, tumbling, polishing.
I do not use a lacquer sealer unless you request it - some people prefer a natural patina to develop on the metal. This patina can be polished with a jeweler's cloth, and the piece will be brought back to its original polishing.
The clasp shown in the photo is the one you will receive. No two pieces will ever be the same. Dimensions for this clasp is approximate: 27mm wide by 46mm long (includes both pieces).
Please convo me if you have any questions.