They measure approx 4.5 cm from the top of the Sterling Silver earwires. They're made of two layers of glass, a Black base layer topped with a layer Gold/Mustard Dichroic glass.
The plated silver attachments measure 1.5 cm x 0.8cm, and are attached to the glass pieces by Sterling Silver split rings.
They come in a Black or Silver card gift box and will match one of the pendants.