ENVIRONMENTAL TECHNOLOGIES-Castin' Craft Clear Polyester Casting Resin. Embed or encase almost any object in crystal clear plastic. Coins, shells, rocks, dried flowers, butterflies, insects and much more. The convenient package includes catalyst in a clear bubble top cap for convenience. Ideal for larger casts just mix and mold. This package contains one 16oz/473ml can with complete instruction for use and care. Contents conform to ASTM D4236. Made in USA. WARNING: This product can expose you to chemicals including Styrene, which is known to the state of California to cause cancer. For more information go to WWW.P65Warnings.ca.gov.