Jewellers' grade, crystal clear resin. It air cures and is non-toxic when hardened (takes 72 hours for best results). It has a self-doming effect for a professional finish. This kit comes with all you need to get going- 4oz of each of the hardener and resin, 12 measuring cups and mixing sticks, and nozzles for the bottles. Comes with comprehensive instructions as well. Visit www.iceresin.com for more ideas and instructions. Please read complete directions and cautions before use. Made in the USA. Qty: 1 kit makes 8 oz of resin.