All Metal Material: The weighty fine compass ensures you a lasting satisfactionEasy Control: Holds tight and lock in place with this adjustable wheel Friendly: No more slipping from , with this precision geometry compass you can make perfect circles. Maximum Diameter: Creates circles up to 10 inches in diameterFree : Compass*2, additional leads *6, nuts* 4, screws*4, reusable pouch*2drafting compass. Small bow compass with precision center wheel allows for extremely fine . student compass features -set center wheel leg adjustment for added .color: blue Material: MetalDrafting type: Student compassDrawing lead can be sharpened/replacedCenter wheel allows for extremely fine -set center wheel leg adjustmentInclude spare leadsEasy-to-handle designEasy-to-use Compassbow compass prevents leg movement during drawing. kid can change the radius of the circle without any effort and always lock in position to their circles.drawing compassA Must-have Item for School Supply ListIt's an assistant for kid's class.It can draw small circles without shaking.Kids will have a lot of doing circles without ever frustrated. your kids for each class!compass with lock GiftIt's also a useful gift for your friends, kids and teachers.A geometry compass that let kid say Goodbye to the difficulty of drawing perfect circles.compass for geometrySuitable for EveryoneThis professional drawing compass is designed for anyone who like to doPerfect Circles such as Students,Teachers, , Metalworkers, Engineers, Architects, Mathematicians, Artists, Craftsmen and Designers.Package include: 2 set Spring metal compass With related accessoriesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.