archery target disc 3d model

A flat, circular disc approximately 26mm in diameter and 4mm thick that acts as a lid/cap. The top surface has a classic archery bullseye target pattern made of 4 concentric colored rings: a small yellow circle in the center, surrounded by a red ring, then a blue ring, then a black outer ring. All rings are equal width. The underside of the disc is mostly flat, but has two features: (1) a small cross-shaped/plus-shaped stem in the center protruding downward, 4mm wide with 1.3mm thick arms, extending down about 3.5mm — this connects to the mechanical keyboard switch hidden below, and (2) the outer edge has a slight step-down or rebate around the perimeter (about 1mm) so it nests flush into the top of the base housing, sitting perfectly flat with no gap. When assembled, this cap completely covers and conceals the switch inside the base. The disc is flat, smooth, and looks like a 3D printed plastic part. No text or logos.