Part A, Part B two-part jeweler's grade resin from Ice Resin. The kit consists of 4 oz Part A, 4 oz Part B, basic instructions, 8 stir sticks, 8 measuring cups, and 2 pouring nozzles. Use to create jewelry, mixed media projects, resin paper, and more. Ice Resin is a jewelers grade, two-part, crystal clear resin. Use in bezels to showcase a sealed image or encase small ephemera. Everything you need to get started! There are all kinds of resins out there now, but this was one of the first better-quality brands made for resin work in your home studio...and it still remains my favorite. I took my first resin classes with this product and still enjoy using it and teaching about it. Shelf life for about 1 year. Sold by the kit.