Additional Details ------------------------------ Product description: This activated, acid-washed coconut carbon is recommended for use with any and all base metal clays needing oxygen-restricted firing. It has been tested and used successfully with Hadar’s Clays, Goldie Clays, Prometheus Clays, Metal Adventures clays, and metal clay mokume-gane! Each bag has 2lbs of coconut carbon, which is enough to fill a standard 4”x4” stainless steel firing pan and still have more for topping off future firings as the carbon slowly produces as and reduces in volume