18 Inch Roller Cover: Equipped with a sturdy 18 inch plastic roller cover, featuring 1/2 inch (12mm) bristles, it offers twice the coverage of a 9 inch roller, allowing for faster and more efficient painting. Detachable Design: Comes with detachable end cap for convenient washing, ensuring you can reuse the paint roller cover without any material loss, making it both economical and eco friendly. Versatile Usage: The detachable design also allows for easy switching with other roller covers, enhancing the versatility of the painting roller and accommodating different painting needs and projects. Wide Compatibility: Boasting hot bonded fabric connection to the core, eliminating the need for adhesives, this roller set is compatible with both water based and oil based paints, ensuring seamless performance. Enhanced Efficiency: Engineered for professionals and crafts enthusiasts alike, the 18 inch roller promotes faster paint application, reducing time spent on painting tasks of wall,