Features: 1.Pleasure: Adjustment wheel with automatic locking mechanism makes drawing easy and fun, you never want to return to plastic compass again! 2. For kids and adults: Excellent for use in school, woodworking, or at home. The best circle drawing tool for student, artist, mathematician, carpenter. 3.Storaeg box:Everything packaged nicely in reusable clear box for easy to carry and store. 4.Easy to Use:with lockable design,it is easy to adjust and draw , convenient for repeat measurements or drawing circles and arches, it wont skip or slide out of your control 5.Widely Use:professional tools for carpenter and designer, ideal for woodworking, carpentry, metalworking and leather work Specifications: Product Name:Drawing Compass Material:PP+Metal Color:Silver Change core type: 0.7mm/0.027inch lead core Size: (Approx) (L)115mm/4.52inch Package Included: 1pc x Drawing Compass 1pc x refill 1pc x storage box Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.