Please read carefully before your order: The OPHIR 3 step airbrush nail gel must be sprayed with the Airbrush which is with 0.2mm-0.3mm nozzle. Usually it can keep at least 20 days on your nails. (Please read the following operation steps) Each bottle is 15ml. The 3 step airbrush gel is researched and developed by OPHIR, which can be removed by medical alcohol. So please use medical alcohol to clean the airbrush after you finishing airbrushing the nails. Removal Tips: Polish the top coat first, then use alcohol cotton to wrap you nails for 1 minute and the gel can be removed easily from your nails. Package Included: There are two choices, 12 colors or 30 colors. Please purchase according to your needs A set of 30 colors includes NO. 1 - NO. 30 A set of 12 colors includes NO. 1-10 and NO. 13 and NO. 15 S001: Black S002: White S003: Red S004: Yellow S005: Blue S006: Green S007: Purple S008: Aqua S009: Orange S010: Crimson S011：Dark Turquoise S012: Dark Pink S013: Light Pink S014: Vermilion S015: Pearl Purple S016: Gainsboro S017: Mint Green S018: Thistle S019: Light Blue S020：Light Fluorescent Yellow S021: Bisque S022: Hot Pink S023: Pale Magenta S024: Light Cream Tomato S025: Magenta S026: Pearl Dark Grey S027: Pearl Dark Blue S028: Light Sky Blue S029: Radiant Orchid S030：Navy