Detail 20pcs 4 Inch Sponge Cartridges Small Sponge Rollers Paint Rollers Cover Sponge Paint Rollers Set for Roll Frame2 styles to meet your needs: There are 2 kinds of sponge rollers in based on the set, which are suitable for 4 inch paint rollers; Flat Style Can take care of corners; Polyester fiber is more recommended for flat area, and these 2 kinds of sponge rollers combine to clean the SurfaceEasy to operate: you can install the sponge rollers cover on the 4 inch paint roller, the surface of the filling sponge roller is smooth, use this brush to rewind the paint on the surface you need to paint, which is easy to operate and does not require too many skills High Density Sponge: The 2 types of sponge refills in this set are high-density sponge, which are suitable for most water-based paints, And it can help you quickly cover the paint on the surface you want to paintWide range of applications: The small sponge roller can be applied to a variety of surfaces, whether you are painting wood boards, walls or other surfaces, this sponge roller can help you, and the effect will be better if applied to a smooth surfaceColor: White+BlackMaterial: SpongePackage Contents:10 x Double Flat Roller Brush10 x Yellow Roller CoreOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.