The DEWALT TSTAK Organiser Diagonal Divider is a tool organiser/compartment box made of PETG material by Ise Valley, a United Kingdom-based brand. This divider allows for easy organisation of small and large tubes, providing a tidy and organised workspace for DIY enthusiasts and professionals alike. Perfect for keeping your tools and workshop equipment in order, this innovative product is a must-have for anyone looking to streamline their storage and organisation needs.