tissue box cover 3d model

Generate a CAD-like printable 3D model of a decorative tissue box cover for a Kleenex facial tissue box. Internal cavity: 230 × 120 × 80 mm, uniform wall thickness 2.8 mm. Bottom fully open. Top has a centered oval opening 110 × 35 mm. Exterior surface features multiple evenly spaced, parallel wave ridges wrapping horizontally around all four sides. The waves repeat from top to bottom with consistent spacing and depth. The wave relief must be real geometry, procedural and regular — not sculpted, not organic, not clay-like. Requirements: clean hard-surface topology, quad-based mesh, watertight solid, smooth surface, no noise, no dents, suitable for 3D printing. Style: modern minimalist product design. Output a single manufacturable mesh.