This is a photo-etched detail parts set for detailing AFV kits.
Voyager Model of China is a manufacturer of some of the best photo-etched metal and resin detail parts in the industry! They are, as it says right on the box, "The Best Upgrade Solution!"
This comprehensive detailing set as shown here for the application stated in title. Set features multiple frets of photo-etched metal parts, machined metal parts, and a variety of metal rods, wires, and plastic rods.