3Pcs Paint Roller Kit, 2Pcs 7mm Thickness 4" Wool Roller Covers and 16" Frame - Yellow, White - Bed Bath & Beyond - 37769868
Amazon.com: Mister Rui Paint Roller, 4 Inch Paint Roller Covers 10pcs, 4mm Short Nap, Wool Blend Small Paint Roller Covers, Reusable Mini Paint Rollers for Use with All Paints and Stains :