The Staedtler® 56198-4 scale triangular ruler is the perfect tool for all your measuring needs! Its handy design and colour-coded grooves make it easy to identify and use for a variety of tasks. Whether you’re working from home, in the classroom, or at the office, this ruler is a must-have for your kit. Plus, it comes in a super durable impact-resistant plastic package, so you can take it with you wherever you go and be sure that it’ll last.