NailCo 15ml Rubber Base And Top Coat Gel Nail Polish Transparent Pink Building Gel Primer Gel Polish Nail Art Ongle Varnish Building Base is a multifunctional Base Coat Which has the characteristics of base coat, building gel, nail stick gel, leveling gel Building Base is viscous, which might fill the choppy surface, make stronger the genuine nail, and the extension operate is terribly firm, preserving the nail from breaking, and may be used to stick synthetic nail, can be perfectly attached to the real nail It isn't always easy to flow and easy to function