Cuccio Pro Base+Builder Gel With Calcium in an easy brush-on formula. Applies like soak-off gel polish but works like a hard gel.Features & Benefits: LED/UV Self leveling lightweight formulaIt is a convenient brush on technique for filling building and shaping the natural nailAllows you to reinforce build and extend a natural nailEasily soaks offIts helping to strengthen weak and brittle nails during wear