This Ten Point Divider is used to divide equally the space between two points, with up to ten divisions. This 6-inch (15.24 cm) long stainless steel divider is an excellent tool for interpolating isobars or plotting and calculating equal divisions of distance or time. 6-inches (15.24 cm) long Stainless steel construction 11 numbered points allow easy conversion of distances Also used by draftsmen and artists Zippered soft black case included Lifetime warranty