10% carbamide peroxide kit, 15% carbamide peroxide kit, 20% carbamide peroxide kit, 10% refill kit (30 - 1.2 mL syringes), 15% refill kit: (30 - 1.2 mL syringes), 20% refill kit (30 - 1.2 mL syringes), 10% bulk refill (150 - 1.2 mL syringes), 15% bulk refill (150 - 1.2 mL syringes), 20% bulk refill (150 - 1.2 mL syringes).