over into a concave shape as shown in the dashed lines the inventor has found that this feature provides some additional benefits in operation as well it is preferred that the pile 12 not be cylindrical right to the end of the roller but is bevelled down towards the end cap as is shown in fig1 alternatively or additionally the pile may end slightly before the shield and end cap leaving a gap of less than about 1 mm or less between the edge of the pile and the shield the sleeve 10 of the present invention may easily be adapted to wire cages with or without an end cap in an alternative embodiment a circular foam disk 20 may be provided adjacent to the shield 16 on the interior side of the shield the foam disk 20 serves to soak up excess paint which migrates towards the shield 16 as well as apply paint as the roller is being used the foam may of the type typically used in foam paint rollers and foam paint brushes in one embodiment the foam disk 20 may be between about 1 5 mm to 2 mm thick and have a diameter that is substantially the same as the shield 16 the density of the foam and the thickness of the disk 20 may be varied according to the viscosity of the paint and other variables known.