Capacity - 3ML Package Include - 10Pcs Gum Barrier Protection Gel and 10Pcs metal tip for precise application. Gum Protector - Protects the gums and soft tissue during the teeth whitening treatment. Safe and Soft - Use of safe ingredients, soft like silicone, no harm and comfortable to use. Very easy and safe to remove from gums. Wide Application - During the teeth whitening treatment, it can be harden in about 2 seconds, doesn't stretch lips or feel uncomfortable.