Double-Ended Design: The 2 in bond and seal eyelash glue features a double-ended design with a spiral mini mascara brush head on the bond side for even and easy application, and a seal side that forms a protective layer and improves adhesion for longer retention. | Super Strong Hold: This cluster lash glue offers a 48-hour super strong hold and is suitable for DIY lash extensions kit , individual lashes, cluster lashes, and false strip lashes. The glue blends in effectively with your natural lashes for a more natural and seamless look. | Safe and Gentle Formula: FADLASH eyelash bond and seal are odorless, cruelty-free, and suitable for sensitive eyes. The glue does not damage your natural lashes. The sealer locks your lash extension into place for comfortable wear. | Easy To Apply: The upgrade spiral mascara brush head makes you apply lash bond and seal to each natural lash easier and more evenly. Fine fluff is distributed on the spiral brush head, glue can be taken out almost evenly by use the threaded brush. | FADLASH GUARANTEE: We are a professional eyelash company dedicated to providing better eyelash products to our customers. If you have any questions about our products, please feel free to contact us and we will try our best to give you a satisfactory solution.