The smart fork is a tool to help eating on the ISS. It helps by making eating safer.How it is used is it is double sided with a fork on one end and a knife on the other side and a rubber coating on the whole thing. The rubber coating is attached in the middle handle and on the sides of the fork and knife the rubber can get rolled up to use and rolled down when done. This tool fits perfectly in the size limit. With this nobody can get hurt if this floats in the spacecraft!