Large core diameter version of Purdy's Colossus™ roller covers hold 25-35% more paint – increases production. Made of an exclusive formulation of 100% polyamide, Colossus™ roller covers lay paint off very smoothly and carry a remarkable amount of material to the surface without dripping or splattering. Perfect for rolling a great deal of new drywall quickly, Colossus™ roller covers hold and release more paint than any other Purdy roller fabric. Designed for heavy-duty painting projects. Also great for stucco, T1-11 siding, brick or rough-textured walls.