Woven Polyester roller sleeve 4 pack with 12mm medium pile height. Long lasting and heavy duty rollers, 9 Inches wide with a 1¾" diameter core these paint rollers are ideal for applications onto smooth to semi rough surfaces. Woven polyester is a high absorbency fabric and is ideal for applying gloss and eggshell paints emulsions and masonry paints. These rollers are manufactured using a Thermo-fusion process which heat bonds the Woven Polyester fabric to the inner plastic core, this ensures these rollers are long lasting as the fabric will not detach from the core. Compatible with all 9 Inch wide paint roller frames all 9 Inch frames on this site have a 1¾" core.