Description: These aluminum corner roller to help you rolling paper wall and no paints,these roller covers feature aluminum with a durable polypropylene plastic handle. This small size makes it easier to paint corners, trim, and do touch-ups than rubber wallpaper roller. Small size is ideal for painting in corners, trim, and other tight spots Washable, reusable, and easy to clean Covers fit all standard 4 in.paint rollers Size Material Diameter Case Measure 4" Aluminum 30mm 100pcs 34x29x35cm 4" Aluminum 30mm 100pcs 34x30x35cm Cohwa supply a range of paint rollers suitable both DIY'ers and professional painter. There are also mini rollers and radiator rollers available. Paint rollers are supplied either in sets or together with sleeves, roller cages and paint trays, there are a multitude of sizes available, from 4â?³to 15" wide, and a selection of materials to choose from including high density foam, polyester, acrylic, microfiber and simulated sheepskin in a variety of pile types.