The CORE-Toolkit comprises 18 instruments for competence assessment and career guidance from different countries with different methodological and content focuses. These tools are suitable for counselling young NEET adults (Neither in Employment nor Education or Training). In addition, the toolkit contains manuals, guidelines and learning materials that serve the empowerment and upskilling of NEETs and thus strengthen their employability. Additional materials for counsellors and available support programs for NEETs in the Western Balkans complete the CORE-Toolkit.