The Maped Stop System compass is a great way to start learning how to use a compass. The set includes a universal holder, mechanical pencil attachment, spare lead and lead sharpener. The Stop System has a unique, patented mechanism that allows the legs to lock securely into place. Durable metal construction ensures lots of use. And the set comes in a convenient storage case that you can use again and again. You can count on Maped to produce quality compasses that are as comfortable as they are easy to use. Maped is the number one compass maker worldwide, with over 60 years of experience in the design and production of quality compasses and drafting supplies. Maped has built a reputation as a company that is constantly on the cutting edge of design through intensive research in the areas of use and ergonomics.