compartment lunch box 3d model

Create a detailed 3D model of a modern modular lunchbox designed for students and young professionals, shown as a post-testing iteration. The lunchbox has a slim rectangular shape with rounded corners, optimized for backpacks. The outer shell is eco-friendly wheat-fiber polymer with a matte neutral finish and subtle side grip textures. The lunchbox is open to clearly show the interior. Inside is a stainless-steel insulated inner chamber with integrated compartment dividers (sekat): one large main compartment and two smaller side compartments for different food types. The bulkheads are smooth, rounded, and seamlessly molded to prevent food mixing and allow easy cleaning. Include an optional removable inner tray matching the compartment layout. Show double-wall construction to suggest thermal insulation. The lid features a magnetic snap-lock with recessed neodymium magnets and a continuous silicone gasket for leak-proof sealing. Add a minimal hinge opening 180 degrees.