Larger Capacity & Precision Short-Bristle Brush: Our 20ml capacity offers more than standard 15ml, cost-effective. The 6mm short-bristle brush, in comparison to conventional long-bristle brushes, closer fit, even pressure, allows the adhesive to penetrate deeper into the etched grooves of the nail | Acid-Free and HEMA-Free: Beetles Nail Primer adopts a unique acid-free formula, completely devoid of HEMA components, ensuring a safe and gentle application process that won't damage your natural nails while providing exceptional cleaning efficacy | Long-Lasting Adhesion: Nail Primer ensures a strong, smooth bond, preventing peeling, chipping, yellowing, and cracks. Your nails stay stunning for over 30 days | Universal Compatibility: Suitable for gel polish, acrylics, builder gel, PG extensions, UV gel, & all Beetles products. Perfect base for any nail art design | Quick & Easy: After completing the preliminary steps, apply primer, air-dry 40s, then dehydrator, air-dry 15s. No lamp needed. Finish with base coat