aluminum coil 3d model

Create a simple metallic spring coil for a bobblehead doll. The object should be a single upright helical coil made from smooth round aluminum wire. Style should be clean, simple, and realistic, with no extra parts. The spring should have medium thickness, evenly spaced loops, and a balanced cylindrical shape. It should look like a functional bobblehead neck spring, sized for a small doll or toy. Include flat contact ends at the top and bottom so it looks ready to attach between a head and body. Material should look like brushed or polished aluminum, slightly reflective but not chrome. Keep the surface smooth and clean. Requirements: low to moderate polygon count, clean topology, smooth curves, no unnecessary detail, no environment, no base, no background, no extra props. Single object only. Centered model. Real-world toy component appearance. Suitable for export as a simple 3D mesh.