Features: 1. Professionally formulated without any harmful substances, safe for nails and skin. High elasticity, no scratches, durable. 2. No nail shapes or acrylic nail tips required. No need to go to an expensive nail salon, just trim, paint and treat to have perfect nail extensions 3. No professional tools/skills required, guaranteed for professional use and home use anytime, anywhere Just three easy steps: trim, apply and cure. 4. Nail extension fiberglass is different from acrylic nail polish, it is softer and lighter than acrylic nail polish. Using it will not affect your daily life, or even you will not feel it. 5. This product is not easy to break or scratch because of the UV absorbing gel. If used properly, it can be used for up to 30 days. And can strengthen fragile fine nails, repair broken nails. Notes: 1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand. 2. Due to manual measurement, there is a tolerance in the product size. Specifications: Weight: about 22.5g Size: about 6.8*3*2cm 1* Nail Fiber Builder