What are the dimensions of the accessories? The USB is about 3.75mm in thickness. The length and width are: 46.25x12.5mm Multi-tool and bottle opener: 62.5x15x2mm All our accessories have a keyhole size of 4.5mm Related articles Will my keys or key fob fit in the Orbitkey? What's different with Orbitkey Key Organiser version 2.0? How many keys can I carry in the Orbitkey? What are the wave washers for? Where does it go? What's the difference between the D-rings for each style? Comments 0 comments Please sign in to leave a comment.