The SPS4 cups redefine convenience with their hollow collar design, ensuring they are lighter and easier to handle during use. Their slotted cup feature adds further convenience, making them more user-friendly. Additionally, they come at a lower cost for single use, making them economically viable. With the capability for both mixing and painting in one, along with the ease of switching between two positions with a single twist, they offer unparalleled versatility for your painting needs.