The CND PLEXIGEL System is a versatile, convenient brush-in-bottle gel nail enhancement system that provides up to 3+ weeks of strength, length, and shape Fill it: Save cracked nails with wearable patches. Fix it: Repair broken nails. Shape it: Plump and shape flat nails. Build it: Create customizable length. CND PLEXIGEL Bonder provides the first step in the CND PLEXIGEL System. It’s a bonding agent that anchors PLEXIGEL to the natural nail for secure adhesion for 3+ week wear. 0.5 fl. oz