MicroCrater foam roller 4 Inches wide, 2 pack of foam mini rollers which deliver a near perfect finish with water based paints, varnishes, gloss and eggshell paints. Suited to smooth surfaces with its 9mm foam pile height. The Micro-Crater foam surface is distressed creating craters, this enables a large pick up and an even release over the surface allowing the paint or varnish to self level, this significantly improves the paint finish and does not leave an orange peel effect left by standard foam rollers. The paint or varnish must not be over rolled until the first coat is fully dried. Compatible with all standard mini roller handles, available on this web site.