The acrylic pen is ergonomically shaped for better hand comfort while diamond painting. Normal thin pens can lead to hand cramps which can be alleviated by the use of a thicker, pen designed for comfort. The single placement tip is designed to place one drill (diamond) at a time with the use of diamond art wax. The three drill placement tool allows you to fill it with diamond art wax, and pick up and place up to three drills at a time. The six drill placement tool allows you to fill it with diamond art wax, and pick up and place up to six drills at a time. The nine drill placement tool allows you to fill it with diamond art wax, and pick up and place up to nine drills at a time. The straightener tip is used to straighten and line up multiple drills on your canvas at once.Details:Dark blue6.1" x 1" approximate pen size6 piecesDiamond art wax and kits sold separatelyContents:1 single placement tip1 3 drill placement tip1 6 drill placement tip1 9 drill placement tip1 acrylic pen1 straightener tip