We created the Boltlock and released it at the Brooklyn Museum to celebrate their David Bowie exhibit. It wasn't a coincidence. Sizewise the lock is in between a Babylock and a Medium Lock.
The Boltlock measures 3cm x 10mm.
Can be machine engraved
14k Gold, Sterling Silver, or Platinum
18k Gold is available by request. Please email firstname.lastname@example.org with inquiries.