There approximate measurements are 1.89" x .99" x 1.1" with a weight is dependant on type of stone. 
 
There is a variety of material that the Dragon Heads can be purchased in, please see list below. For the most part the all the Dragon Heads are the approximate measurements listed above, except weight. If you would like to know weight please email us we will weigh and respond as quickely as possible. Some material we have multiples of, we will in general do just a random pull within the specified material class, unless again we are contacted, we will do our very best at helping everyone out. 
 
Material types: 27 Varities
Amethyst
Purple Fluorite
Silver Crazy Lace Agate
Red Spider Web Jasper
Zosite (some may have rubies included)
Turqoise in Matrix
Green Fluorite
Mangano Clacite
Green Aventurine
Moonstone
Lepidolite
Llante 
Chinese Writing Stone
Quartz
Shell Jasper (not a lot of white in these few pieces)
Sonaran Jasper
Green Tree Jasper
Que Sera 
White Jade
Red Jasper
Larvakite
Lemon Jasper
Mahogany Obsidian
Moss Agate
Cherry Blossom
Opalite 
Bumble Bee Jasper