The 25x30 brass/leather-sheathed telescope w/ wood presentation box measures 1.38"Dia. x 13.5"L. It measures 5.38" when collapsed. This telescope is almost as powerful as our largest floor-standing harbormaster telescopes. This telescope produces a sharp non-inverting (upright) image. It has a precision 30mm objective lens and the optics are the highest quality with full anti-reflection coatings. The 25 power telescope is solid brass and comes with a 100 percent hand-sewn leather sheath. Unlike other polished brass telescopes, it has a special scratch resistant clear coating that eliminates tarnish and fingerprints on the brass. It makes a great gift and impressive decoration.