Whisper Them Precious roller for smooth walls Reductor break down floor
ProDec PRRE034 7 inch x 1.75" Long Pile Woven Trade Professional Paint Roller for A Smooth Finish Painting with Emulsion and Masonry Paints on Interior and Exterior Walls and Ceilings, 7" :
Choosing The Right Paint Roller - Short & Long Pile Rollers | Armstead - YouTube
Best roller for smooth finish - emulsion - Decorating - BuildHub.org.uk