Wagner 9-in x 3/8-in Roller Nap 9-in x 3/8-in Nap Knit Polyester Paint Roller Cover in the Paint Roller Covers department at Lowes.com
6pcs Paint Roller Covers 9 Inch x 3/4" Nap, High Capacity Lambswool Roller Covers for Paint Rollers, Naps for Paint Roller Brush and Frame, Perfect House Painting Supplies for Textured Rough Surfaces -
How to Choose a Roller Cover | Purdy
NAP Roller 3/8" - Handi-Treads Solutions for Slips, Trips & Falls