39.5 inch Telescoping handle. Inspired by aerospace technology, the aluminum alloy frame is light, super strong and rated to safely support up to 300 lbs. The removable, hand washable, Insert Bag is made from premium water resistant 600D polyester. The dual wheel system climbs stairs and curbs with ease. This bag DOES NOT meet FAA specifications for carry-on baggage. Magneto dynamic 4inch polyurethane wheels absorb shock and make for a seriously silent ride. Gear platform to carry additional load. Feet, made of nylon 6, go easy on scratchable surface