The Monarch Expertech Professional Render & Brick Walls roller cover is made of a new Spi-weave fabric. The 26mm nap has an open weave design and is the perfect synthetic fabric for providing excellent pick-up and release and maximum coverage* to get your paint job done faster. The extra-long 26mm nap is the optimum nap length for render, brick walls, concrete, rough and exterior surfaces. The extra-long nap ensures maximum coverage, especially when trying to paint uneven surfaces with many nooks & crannies. The tough and durable fibres can withstand being used on harsh surfaces and can be reused multiple times. This is very handy when applying more than one coat. The versatile fabric can still be used on flat surfaces and will provide a flat and low sheen finish. Suitable with all paint types. *Compared to Monarch regular microfibre | Monarch Expertech 230mm Render And Brick Walls Spi-Weave Roller Cover