Blocks form a decorative corner on doors, windows, crowns, baseboards and chair rails where two mouldings meet. Rosette blocks form a decorative corner on doors and windows. Plinth blocks add a decorative design where door trim meets the base mouldings. Crown blocks are used where walls meet the ceiling. Components eliminate the difficult mitre cuts on baseboard mouldings. Plus, there are Inside Corner, Mid-base and Outside Corner Components.