the 18 liners are made of PP plastic, tightly fitting the paint cup to prevent leaks; When switching colors or finishing your project, simply lift out the liner and replace it, no scrubbing, no wasted time, just an effortless cleanup process that keeps your workflow smooth each set includes 1 piece red paint cup (5.12 x 5.12 inch/ 13 x 13 cm), 18 pieces disposable liners, and 1 piece black 2 inch paint brush; No need to buy tools separately, this convenient kit gives you everything required to painting right away, saving you time, money, and hassle the paint cup features a that holds your brush securely when not in use, while also storing excess paint neatly inside; No more dripping brushes or paint splatters on your workspace, keep your hands, table, and floor clean so you can focus on creativity instead of cleanup wth the ability to hold up to 0.5 liters (17 oz) of paint or stain, the painters cup with brush holder provides enough space for bigger projects like walls, furniture, and woodwork; The generous size reduces the need for frequent refills, allowing you to work continuously and stay immersed in your painting whether you're repainting furniture, touching up walls, working on art projects, or introducing kids to fun crafts, this paint cups for painting is designed for both beginners and experienced painters; The bright red cup makes it easy to spot among your tools, Manufacturer: Uxsjakjsd