Hardshell Luggage Sets 3 Piece Gradient Color Expandable Suitcase with Spinner Wheels and TSA Lock N732P184448RMaterial: These luggage sets with wheels are made from high tenacity PC material, harder and more resistant to pressure, effectively reducing damage caused by collisions during travel. Protection: Each suitcase is covered with a protective film, which can be removed before use to avoid bumps and scratches during transportation. Safe: Side mounted TSA lock which allows only TSA agents to inspect your suitcase sets without damaging the lock. Zippers are