One package with divider, inside calipers and outside calipers.Measuring and transferring precise distances to reduce more errors and for a wide range of measurement.Precise adjustment due to solid nut.Spring Inside Outside Divider Caliper Set is used for measuring and transferring precise measurements due to the solid nut which can adjust. They are a good tools for machinist, They are made from high quality carbon steel with hardened and finely polished points, more durable and artistic.They have a substantially hardened spring for years of service. You will love it.colour: Silvermaterial: steelsize: 230mmPackage Contents:3* Spring inside and outside calipersOnly 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.