Pair - you can choose to have the beads plain or etched (right hand pair are etched).  Approximate measurements: 12mm x 9mm (midrange measurement).  Since every bead is individually made, there will always be slight variations in size - made to order so please allow 5-7 days for despatch. Made on 2.4mm mandrels.  All beads are kiln annealed and carefully cleaned.  Colour variations are part of the frit reactions :)