Some bands use small notebooks, also known as a dot book or drill book, which they hang about their necks, on the drum harness, or around the waist. These contain pages of "drill charts", which often either give a picture or list coordinates that band members use to find 'pages' or 'sets' on the field. Coordinates are normally listed in 8-to-5 steps off the front sideline and front and back hashes, along with the number of 8–5 steps off of the yard line listed on each page. Some bands are even using small plastic pouches that hang about their neck on an adjustable strap, which has a zipper pocket for holding drill, flags to mark sets, and a pencil. There is also a clear plastic window in front to display the current part of drill being worked on at that point in time.