Hard Gel: Our NFS Builder gel is a hard gel, offering strong and durable nail enhancements. Soakable: It is soakable. Self leveling: The gel is self-leveling, ensuring a smooth and even application with minimal effort. Great Retention: Our NFS Builder Gel provides excellent retention, ensuring weak and brittle nails are better protected and strengthened. Ideal for Extensions: It is a really great product for building and extending nails, offering amazing strength.