Package Content: 1* Nail Primer 1* Nail Pre Dehydrator 1* Top Coat 1 * Base Coat Volume: 0.5Fl oz: Nail Primer&Nail Dehydrator 0.33Fl oz: Top Coat Base Coat. Nail Prep Dehydrator & Nail Primer plays an important role in any professional artificial nail application ( applying the gel, gel polish and acrylic nail). After applying this duo set, you can get these effects: 1. Remove grease of the nail surface 2. Sterilization 3. Acid-free, no burn and no harm to nails 4. Anti-off prevention 5. No lifting 6. Long-lasting for more than 30 days(with the correct using method). Keep Your Color Nails Long Lasting 1. NAIL PREP DEHYDRATOR: It is especially to get rid of the oil and dry up the whole cuticle in the nail bed area. 2. ACID-FREE NAIL Bond PRIMER: It's less corrosive and works like double-sided tape to stick nail and product together. 3. When used together these high-quality products, it will prevent lifting and provide nails for lasting more than 30 days. 4. The biggest difference between a nail dehydrator and a nail primer is that a nail primer can be used as a base coat to your manicure. A nail dehydrator is placed on your natural nail before anything else and creates a surface that nails polish and acrylic nails can easily bind to, after that is when a nail primer is put on.