The double core design of these rollers enables them to hold three times the amount of paint compared to 4" sleeves, facilitating rapid coverage of large areas. Many professional decorators consider them to be a close runner-up to a spray finish. These rollers are compatible with Axus Decor Immaculate Mini or Awkward Reach frames, or similar alternatives. Constructed with HD foam topped with velvet flock, they achieve a super-fine finish with both water and oil-based coatings. Ideal for painting doors and other woodwork, these are professional-grade mini rollers.