The document discusses NICE's return on investment (ROI) tools, which predict the economic returns of funding certain health interventions. It describes the development of NICE's initial ROI tools on tobacco, physical activity, and alcohol through stakeholder engagement. Stakeholders provided feedback that the tools' metrics were unclear and wanted easier access to guidance information. NICE then created online versions of the tools, testing them with stakeholders who found them simpler to use but still having some technical issues. Next steps include publishing the five web-based ROI tools.