Running Track Tile

4x4m six-lane running track tile, 0.05m slab, base at y=0, tiling vertices at +/-2m, flat sides so it butts the turf and concourse tiles; piece knob = straight (1.22m lanes ruled square across in 0.05m white paint).

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit