The award-winning Bond modular shelf system is flexible in nature and designed to easily shape shift through house moves, life changes and a number of configurations. Designed with Main. Bond is pleasingly classic in design with a refreshingly straight-forward tool-free assembly. It can be wall-mounted, free-standing or hung from the ceiling. Its buildable nature means you can start small and add more shelving over time; simply slot new modules into place when you are ready.