RJBD - Bold Celtic Spirals Button 3/4". Bold Celtic Spirals-Card of 4 3/4 Inch These pewter buttons were cast by hand from lead-free jeweler's pewter. The traditional spiral design is Celtic. These are excellent on garments made from Icelandic or Shetland wool and look really beautiful on traditional Irish sweaters. This is a very handy size button for cardigans at 3/4 inch