Our DIY Small Roller Brush contain resins, penetrants and latex. It can quickly cover small defects or unsightly scratches on the surface, making the surface glossy and smooth. Its use method is very simple: before use, unscrew the round cap, tear off the aluminum film paper, and then the roller brush head is fixed on the head of the bottle in the clockwise direction, when in use, the roller brush head is turned downward, the upside down bottle will be covered with paint, each layer of curing and then apply a layer of roller until the stain is completely covered. Can quickly and effectively repair the cracks in the wall, so that the wall is restored as new.