All-in-one paint cups with lids - These cups are suitable for a range of painting media including oil, watercolor, gouache, pottery, and craft painting. The transparent plastic walls let you see and match colors quickly, while the lids help keep paint fresh between sessions. Leakproof and spill-proof design - The cups are made from clear plastic and feature secure lids to prevent leaks and spills. Ideal for transporting paints, mixing colors, or working on projects without worrying about mess. Washing and organizing use - These cups are suitable for washing brushes, pens, and other painting tools, in addition to holding and mixing paints for oil, watercolor, pottery, gouache, and craft painting. Reuse them across multiple projects to keep tools organized and accessible. Durable storage container with secure closures - The storage container uses grooved-rim caps with locking clasps, enabling convenient refilling and a secure seal. This design minimizes spills and ensures paints stay contained during use and storage. 2-3 practical use scenarios - In a studio or classroom: use multiple cups to hold different color families. The transparent walls let students see colors at a glance, and the lids keep pigments from drying out between sessions. - On the go or during workshops: transport paints safely without leaks. The leakproof design minimizes mess in bags, backpacks, or setups. - For brush and tool maintenance: rinse brushes or pens in the cups, then reseal for later use, helping to keep tools clean and ready. Key attributes - Material: clear plastic - Function: paint mixing, storage, and tool washing - Compatibility: suitable for oil, watercolor, gouache, pottery, and craft painting - Performance: leakproof, spill-proof lids; grooved-rim caps with locking clasps for secure refilling and closure