1.reason
Because - I need to know the color and the size of the lost object.
- I can easily find the object by attching attaching the poster.
- color and size of the missing item.

2.contact number
-Because - I need to know the contact number, so I can see
if someone has found the lost item.

3. missing place
- I need to know where I lost my stuff so I can report my lost propery.

4.a picture of the missing item
- I need a picture of the missing item so you can attach it on the poster.

Thank you, Suji!