WHAT IT IS: Advanced sculpting powders with easy workability and enhanced color options. WHAT IT DOES: Activate the cross-linking and polymerization of Retention+TM, Radical SolarNailTM and MoxieTM Sculpting Liquids. WHY YOU NEED IT: For use with Retention +, Radical SolarNail or Moxie Sculpting Liquids. Available Sizes: 0.8 oz. (22 g) 3.7 oz. (104 g) 16 oz. (453 g) 32 oz. (907 g)