This is a traditional British single handed divider is made up of solid brass and stainless steel points. Every seasoned navigator has a pair of there single handed brass dividers on his chart table. This instruments has many functions, by using this divider, any distance picked off a chart between divider points can be immediately converted to unknown speed or time. Product features: material: brass & steel finish: shiny brass finish size : 6 inch look photos for actual image of product. All work is hand made. This is a reproduction item, not sold as antique. Good piece of collection. Table top decorative room decorative home decorative best for gift.