Celtic Knots Tunic, Cloak or Cape Clasp Size: 2  across Celtic Knots Tunic Clasp These clasps are designed to be both sturdy and light weight. Cloak clasp is attached to garments using a machine button stitch or hand sewn on with a button stitch. Made of nickel hardened pewter. Excellent for a Renaissance, Anglo Saxon, Norman or Medieval Impression. Excellent for a period look for Renaissance, Victorian, Gothic or Edwardian as well as most other periods and modern interpretations.