These are each half gallons with a combined weight of 8 pounds. You will receive 1 half gallon of resin and 1 half gallon of hardener. The resin is a premium quality 100% solid with no cheap additives. This resin can be used for high gloss coatings. Ideal applications are jewelry making, wood working, crafts, arts, tumblers, coatings of concrete, wood, and stone. The mix ratio on our resin is 1:1 by volume (1 cup to 1 cup). Fully cures in 24 hours and cures to a super shiny rock hard finish.