porcelain, handbuilt, soft satin finish.  
3 sizes:
- demitasse (3.5" w x 2.5" d x 2.75" h) - $30 
- medium (5" w x 3.5" d x 4" h) - $50
- jumbo (5.5" w x 4" d x 4.75" h) - $65
dimensions are approximate