1 MULTIFUNCTIONAL RUBBER BASE COAT:RARJSM rubber base gel nail polish is a nude skin tone gel and it is tend to be thicker than a regular base coatRubber base gel can be used as base coat,quick extension gel,sheer pink color gel and nail strengther gel Rubber base gel also helps to make your nails more flexible if you have weak and brittle nails that might break or crack easily,2 EASY TO EXTEND:This nude pink rubber base gel is thicker than normal base coat ,because the gel texture is thick,quick self -levels but it does not spread,does not flow on the side rollers and cuticlesSo it is very easy to brush on and extension the nails, we recommend 1-2cm extend,3 LONG LASTING:This gel bottle rubber base should be able to work with most gel polishes??but we recommend use RARJSM gel polish will last longer??and you can use both UV or Led to cure themRubber base coat is a soak off polish so they are also easy to removeThe base coat gel nail polish is long lasting for 21 days with perfect shine under proper application --With top coat under the full application process,4 STRONG ADHESION:This sheer pink gel builder might leave a sticky residue even after curing in the lamp, which is completely normal Having a tacky or sticky base will allow your other nail colors to adhere to the base and prevent it from prematurely chipping awayThat can make your nail art manicure more reliable and long lasting,5 UV LED CURING REQUIRED:Rubber Base Gel nail polish require a UV or LED nail lamp to cure, harden, or set your gel nail polish in place Gel formulas cannot air dry down and will only be set entirely using a nail lamp In addition,rubber bases need to be cured In general, UV lamps will take longer to cure than LED lamps