The Cobex Circular Chart is a set of 52 paper charts in a 6-inch size, packaged in two boxes for a total of 104 charts. These circular charts are designed for data collection and are ideal for recorders and plotters. The chart paper is of high quality and is suitable for various business and industrial applications where precise data analysis is required. The product does not come with a battery included and is not a modified item. It is a reliable and efficient tool for capturing and recording data in a circular chart format.