The Blundell Harling Single Handed Dividers are a precision tool used in marine navigation, engineering, and surveying. Made in the United Kingdom with stainless steel and brass materials, these dividers are designed for accurate chart work and come in a 7" size. With a vintage design dating back to 1951, these compass/dividers are a valuable collectable for those interested in scientific and engineering memorabilia. Ideal for use by navigators, surveyors, and collectors alike, the Blundell Harling Single Handed Dividers are a classic piece of British craftsmanship.