1 case of 4 individually packaged kits. Each kit contains 2 pints of silicone. You get 4 kits which is 1 gallon total silicone. Easy for workshops and storage! OOMOO Silicone Rubber - No Scale or Vacuum Chamber Required OOMOO 25 & 30 are easy to use silicone rubber that feature convenient one-to-one by volume mix ratios (no scale necessary). Both have very low viscosity for easy mixing and pouring, and vacuum degassing is usually not necessary. Both products cures at room temperature with negligible shrinkage and have good tear strength. OOMOO 30 has a 30-minute pot life, with a six-hour cure time. OOMOO 25 is a faster version, with a 15-minute pot life and 75 minute cure time. 1 OOMOO 25 & 30 are suitable for a variety of art-related and industrial applications including sculpture and prototype reproduction, casting plaster, resins and wax. OOMOO 25 - Shore 25A hardness