This is the M2 Star Stylus #A-5555-0295. It has a stainless steel cube and stem with a ruby ball.
| Thread mount | M2 |
| Ball Diameter (DK) | 2.0 mm |
| Length (L) | 22.0 mm |
| EWL (ML) | 4.5 mm |
| Stem Width (DS) | 1.4 mm |
| Base Diameter (B) | 5.5 mm |
| Stem material | Stainless Steel |
| Mass | 1.0 g |
