[Warm Tips & Friendly Service] Please contact us directly with any questions and we offer a replacement or refund service. Our products are brand new and well sealed. If you get something that is not new or damaged, defective or missing items, please feel free to ask us for help. Please note: Do a 24 hour skin test before use. If discomfort or allergy occurs, please stop using immediately. [Certified Non-Toxic And Healthy] No harsh ingredients or binders that cause nail damage, preservative and cruelty free, anti-chafing, low odour and skin friendly. Our builder nail gel is convenient for you to build the look you've always dreamed of and achieve the best modern salon look gel manicure at home with little expense. [A New Way To Lengthen Nails] As easy as applying nail polish, the nail glue builder set doesn't require any fancy nail brushes. Suitable for professional and personal use, this high performance nail builder gel effortlessly shapes and contours nails. Enhance your natural nails by creating a fuller, more pleg shape, or lengthen nails up to 1cm by using tips or nail shapes. As well as providing a protective base coat or a long-lasting top coat. [Ultra Self-Leveling] The perfect high self-leveling formula and the built-in brush make it easy to control and adhere to natural nails, helping you to easily create length, thickness or add the strength you want to your nails and ensure a smooth and natural base layer with a perfect shine. (Curing under UV/LED light for 60-90 seconds is required). [5 in 1 Nail Building Gel] Can be used for building gels, base gels, nail extensions, nail repair, nail reinforcement, attaching diamonds and creating 3D nail designs. A wide range of gels for different uses can create the perfect shape for your nails.