This item is a set of optional parts for detailing car models. It requires both cement and painting to complete or use.
Here's a deluxe set of detail parts for Hasegawa's fantastic Ferrari 250 Testa Rossa kit (linked below). Includes three frets of photo-etched metal parts, a wire wheel set, four exhaust tips, four air valves, and a "wire gear lever" shifter. Very comprehensive!