The ESP6HN Rocker Pencil for Bovie is compatible with all Aaron Electrosurgical Generators and Desiccators. This pencil comes with a needle, holster and a 3 pronged connector. The ESP6HN Pencil is simple to use with an on/off switch and an easy grip handle. Each ESP6HN Rocker Pencil comes sterile and individually packaged. There are 40 pencils per box.