Features: Accurate Drawing Tool: Alloy materials compasses ensures that every circles drawn is precise and errorfree. Solveds the problem of deformation of ordinary plastic compasses, suitable for student and professional designers who need fine drawing. The main body ABS plastic. With portable size of 18x7.5cm, it can be easily placed in a pencil case, making it easy for student to carry without any burden. It is not easily damaged. The portable storage box set comes with dedicated storage box, making it easy to organize all tool and avoid loss. Especially suitable for business people who frequently travel or need to carry stationery, ensuring that work efficiency is not affected. Multifunctional combination: includes multiple ruler and drawing tool, a set that meets various needs. Solveds the problem that a single tool cannot handle complex tasks, suitable for use in various occasions such as schools, offices, and homework. Comfortable grip experiences: The ergonomic handle to prevents fatigue even after prolonged use. Provide a more comfortable user experiences and improve work efficiency for users who need to spend a long time on drawing work. Specifications: Materials: Plastic Size: 18x7.5cm Color: Green, Black, Light Blue, Light Pink(optional) Package Includes: 1Set compasses Ruler note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.