1. Color Changing: When your nails come into contact with a warm or cold surface, the color of the nail polish changes, resulting in a fascinating gradient effect. Long nails are more noticeable.2. Smooth Application: The nail polish pen has a rotating device that dispenses gel nail polish and ensures smooth and even application3. Long Lasting: The premium ensures that the colors stay vibrant and on your nails for an extended period, does not fall off or fade.4. DIY Nail Art: Highly sensitive to temperature, gel nail polish pens are perfect for creating unique and eye catching nail designs, making them the perfect choice for nail lovers to enjoy DIY nail art.5. Important Note: Clean and polish the nail surface before use, in rare cases, gel polishes may cause an allergic reaction to skin contact. Test before use.Specification:Item Type: Color Changing Nail Polish PenQuantity: 4 pensCapacity: 5ml per penShelf Life: 2 yearsHow to Use:Step 1. Clean the nails, and then trim the surface of the nails in a regular nail trimming process.Step 2. Shake the nail polish well to ensure an even color of the nail polish.Step 3. Apply a base coat first to extend the nail polish's lasting time, and cure it with a UV lamp or LED lamp. (If necessary)!Step 4. Apply the nail polish directly, cure it with a UV lamp for 2-3 minutes or LED light for 60 seconds. After it dries, apply a second coat and cure it with a UV lamp or LED lamp.Step 5. Apply a removable top coat to give the color a glossy finish, and cure it with a UV lamp or LED lamp.Step 6. Use cotton soaked in a cleanser to remove any sticky residue on the surface.PackageList:4 x Color Changing Nail Polish Pen

DIY Nail Art: Highly sensitive to temperature, gel nail polish pens are perfect for creating unique and eye catching nail designs, making them the perfect choice for nail lovers to enjoy DIY nail art. Important Note: Clean and polish the nail surface before use, in rare cases, gel polishes may cause an allergic reaction to skin contact. Test before use. Color Changing: When your nails come into contact with a warm or cold surface, the color of the nail polish changes, resulting in a fascinating gradient effect. Long nails are more noticeable. Smooth Application: The nail polish pen has a rotating device that dispenses gel nail polish and ensures smooth and even application. Long Lasting: The premium ensures that the colors stay vibrant and on your nails for an extended period, does not fall off or fade.