Features: High Precisions Measurement: Featuring accurate scales with a 30cm scale, this compasses ensures precise circles drawing for designers and students in drafting projects. Light Weight & Practical Design: Made from plastic and light weight, it easily fits into bags or pockets, ideal for student and professional on outdoors. Quality & Shock Resistant: Crafted from high strength plastic, this compasses is impacts resistant and long lasting while being lighter than metal alternatives. Wide Applications: Perfect for school assignments, engineering measurements, art creation, and offices use, meeting diverse drawing needs effortlessly. Easy to Use Mechanisms: The rotating lock allows quick scale adjustment for efficient setups, eliminating complicated steps during use. Specifications: Materials: Plastic Color Optional: 4 Color are Available as Shown in the Picture. Weight: approx.100g Size: approx.14cm/5.51inch Package Includes: 1Pc Drafting Compasses note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!