Polo Class Premium Polycarbonate,360 Roatating Wheels and number lock facility,Stylish printed body,Rotating Securitie Securitywater Smart "Securitec" zipper for anti-theft security, Material : Polycarbonate, Casing: Hard, water-resistant, 3 years manufacturing warranty, 8 wheels, cross straps to secure the contents of luggage and to help prevent shifting,this bag is scratch and has reduced abration visibility,100% polycarbonate virgin hard case, design to absorb impact understress and go back to original shape. polo class brand is a uniq and stylish brand with spacious interiors.