Our small but powerfull brass Pocket Telescope is 7/8-inch (22 mm) in diameter and 5 5/8 inches (14 cm) long when collapsed. The telescope is made from solid brass and has a special clear coating that never requires polishing and will not tarnish. The 12-power Pocket Telescope has two pipes and measures 9 1/2 inches (24 cm) when extended. The optics are high quality multi-coated glass that produce an erect (upright) image through its 17 mm diameter objective lens and large 8 mm diameter eyepiece. The telescope is marked "Stanley London" near the eyepiece. The Premium Hardwood Box is a high quality hinged dark hardwood case with dark green felt lining. The Hardwood Box has hidden brass hinges and a smooth hand rubbed finish. The pocket telescope weighs 3.4 ounces (96 grams) and the premium box weighs 6.1 ounces (173 grams).