Artec [School teaching materials and educational toys] Sealed plastic pallet

Can be used with both watercolor and acrylic paints.
The lid is tightly sealed, acrylic paints do not dry for about 3-4 days, and watercolors do not dry for about a week.
All you have to do is wipe off the paint you want to throw away and put the lid on, which greatly reduces the time it takes to clean up afterwards.
The paint doesn't drip when I carry it.
High airtightness is achieved by using silicone packing for the meshing part.