Our largest spyglass telescope requires full arm extension to hold. They can be been seen in Walt Disney's Pirates of the Carribean Dead Man's Chest movie. These large solid brass telescopes are 35.5" long when fully extended, and are 12" long when collapsed. These non-inverting four-pipe telescopes are available in two versions; hand sewn leather sheathed brass, and antique patina. Both versions have bright 5-element ground glass optics with a powerful 20-power view. All are heavy solid brass and each weighs 3 pounds, 9 ounces. The telescopes are 2.5" in diameter with a 52 mm diameter ground glass objective lens. Any of the 35" Spyglass Telescopes come complete with a beautiful hardwood case. The box is fully lined with dark green felt and the corners are inlaid with lighter hardwood splines. An oval brass plate on the top of the case is inlaid flush with the surface. The case measures 12.75" long, 3.75" deep, 3.5" tall, and weighs 1 pound, 9 ounces.