To assemble:

Take AquaColor pen and dissemble
Carefully remove the rubber cap from the cartridge, keeping the cartridge upright
Plug the cartridge into the pen and reassemble
Directions for use:

Apply Bluesky base coat and cure for 60 seconds under an LED lamp/2 minutes under a UV lamp
Apply 2-3 coats of Bluesky gel nail polish, curing for 60 seconds/2 minutes after each new coat
Take your AquaColor pen and draw desired pattern over gel manicure
Finish with a Bluesky top coat and cure for 60 seconds/2 minutes