To keep your post box in a good condition, you should:
- polish the painted parts once or twice a year;
- clean the synthetic parts with a micro-fibre cloth and a normal cleaning product;
- clean the copper or brass parts using a dry cloth with some copper polish (avoid the synthetic parts);
- put a drop of oil in the lock, if necessary.
Please note: never use chlorine, chlorinated, aggressive or abrasive cleaning products.