Contains: 3 x 2.8 mL Pola Office+ Syringes 3 x 1g Gingival Barrier Syringes 3 x Optragate small Accessories. Pola Office+ is a hydrogen peroxide based in-office tooth whitening system requiring minimal chair time. It is a neutral pH gel and contains desensitizers to maximize patient comfort. The dual barrel syringe system mixes as the gel is applied directly to the tooth.