- High-Quality Construction: Crafted from durable tinplate, this watercolor empty box is water and moisture resistant, corrosion resistant, and rust-proof, making it ideal for artists on the move. The inner metal shell is designed to be empty, allowing for easy cleaning and customization of your watercolor palette. - Optimal Size for Portability: Measuring 22.3 cm x 11.2 cm x 2.5 cm (8.78 in x 4.41 in x 0.98 in), this lightweight watercolor box features 48 card slots for a diverse range of colors. The flexible rails ensure that the cups stay securely in place, keeping your colors organized and accessible. - Versatile Mixing Space: The box includes three mixing zones and a removable paint tray for creating custom color blends. A folding mixing trough adds extra space for mixing, allowing for seamless transitions in your artwork. Its compact design makes it easy to carry in a bag or backpack, perfect for outdoor painting sessions. - Comfortable and Secure Grip: Designed for ease of use, this travel-friendly metal watercolor paint box features a thumb ring for a comfortable grip while painting. The non-slip metal hinge ensures stability, preventing spills and allowing you to focus on your creativity. Use Scenarios: 1. Ideal for plein air artists who need a portable solution for mixing and storing colors while painting outdoors. 2. Perfect for students and hobbyists who want a customizable palette that is easy to clean and maintain. 3. Great for professional artists seeking a reliable and durable watercolor box for travel and outdoor workshops.