Steampunk ATC Kit with 12 Gears, Sprockets & Cog Charms. Here is a Steampunk ATC kit. It contains 9 (only 6 shown) single-sided Artist Trading Cards, Steampunk themed, as well as 12 great metal steampunk gear charms. 6 different metal gears, sprockets and cogs, 2 of each for a total of 12. Largest gears measure 1 inch in diameter and come in silver and antique copper. Next, 2 different cogs that measure 3/4 inch in diameter in silver and antique bronze. Then 2 antique bronze spockets that measure 5/8 inch in diameter and lastly 2 antique bronze cogs that measure 1/2 inch in diameter. Great for Steampunk ATCs, paper crafting or jewelry making.