This In-Office Whitening System contains a simple set of instructions that includes both step-by-step instructions and in-depth considerations. The kit offers a unique Twist & Seal syringe containing 4 cc of 35% hydrogen peroxide accompanied by a syringe containing 0.8 cc of No. 9 Enhancer chemical activator. A dental dam syringe containing 2 g of light-cured liquid dam, colored for better visible control, is included along with 2 applicator tips. There are also 4 applicator brushes and vitamin E. For more information, call (800) 543-3545.