Top quality luggage sets, PC material for hardshell, which makes the luggage more durable, lighter and impact-resistant. 21in is best for carry on, 29in expands 20% for more spaces. Organized and Spacious Interior. The fully lined luggage includes a handy divider and an interior organizer with zippered pocket for smaller items. TSA lock allows only customs agents to inspect your luggage without damaging the lock when traveling and protects your stuffs in luggage and privacy more better. Simply set the combination. No keys are required. Adjustable & sturdy ergonomic 3-step telescoping handle allows you to maneuver in tight spaces and provide effortless movement. Smooth ups and downs for more comfortable carrying. Two Hooks (25" 29" ) can hang your computer bag, backpack, hat, etc., to help you relieve fatigue during your journey.