Standard Skywatcher 7-21mm zoom eyepiece for telescopes with 1.25″ plug connection. Some focal lengths are printed on the eyepiece scale for better orientation. The eyepiece has a comfortable, high eyecup. A convenient eyepiece solution, because you only need 1 eyepiece for many magnifications! Scope of delivery: 7-21mm zoom eyepiece with 1.25″ barrel Dust protection caps! Power supply and batteries are not included in the scope of delivery!