Nail Gel Kit: 7 Colors Poly Nail Extension Gel Kit includes 7*15g Poly Nail Gel, Mini Nail Lamp, Nail File, Nail Dust Brush Pen and more. Flexible and portable manicure kits are available for easy portability, allowing you to perform manicures anytime, anywhere, at home or on the go. Long lasting: Our nail gel is formulated with innovative all non-toxic ingredients and botanical extracts to give nails high stamina and long lasting strength, cruelty free, low odor and safe for natural nails. With proper application, lengthen your nails and show them off for more than 21 days Enjoy Color Change: Feel the magic of quadruple temperature change at your fingertips. Poly nail gel color will change according to the temperature of the nail You can see how it changes from the description.