Opinel Picnic Plus Picnic set contains: 1 Opinel knife N°08 two inserts, each consisting of a fork and a spoon, which you can attach to the handle of an Opinel 8 knife also a microfiber cloth for storage and cleaning How to attach the tops? Keep the knife blade closed! Turn the ferrule (ring) to an open position. Now attach the fork top or spoon top to the ferrule in the small spaces. Close the clamp (the ring) again.