Set: the paint tray is made of black polypropylene material (recycled material - a handle shaft black) and a sponge roller made of white polyurethane having a diameter of 5 cm and a length of 15 cm, made with no adhesive. Appropriately selected density of the foam prevents uncontrolled rotation of the foam plastic core without bonding it to the core. The advantage of this is the ability to dismantle the roller to clean it, which is often used for example after impregnation of concrete. The density[...]