These handy disposable PET plastic paint tray liners are quick, convenient and reduce the environmental burden compared to disposing of rigid paint trays. They save time both during and after use, enabling quick colour changing without the hassle and mess of washing out trays, making them ideal particularly when using more than one colour, as well as ensuring that wash water contaminated with paint doesn't get into drains and sewers. Although they're a thin gauge, the moulded construction is robust enough to withstand paint rollers without deforming under pressure.