Hobby chain 4 mm (Green Stuff World)Miniature hobby chain 4 mm Made of brass are perfect for 1 35 scales or 54mm miniatures, they can be used to represent heavy duty industrial or military chains, such as those used on tanks, construction equipment, or heavy machinery. It might also be suitable for certain ship anchor chains or maritime uses. More examples of their uses will be: Vehicles: For securing loads, towing equipment, or as part of the detailing on tanks and armored vehicles.