UNi-PRO You Can Do It Micro-fibre roller cover 230mm x 4mm Nap features Advanced Micro-fibre technology enables superior paint pick-up and release.Low splatter and lint-free so you can achieve the ultimate smooth finish only professionals achieve. Perfect for doors, cupboards and floors.Best suited with water based aqua gloss and satin paints. Can also be used with oil based enamel. Handy Tips: If you are painting overnight, make sure you wrap up your paint roller covers in cling wrap, so they don’t dry out. They can then be reused the next day to finish off your painting task.When painting a room always start on the ceiling and then work your way down from there. Ceiling, walls, trims and finally doors.