•This Rock suitcase is made from ultra-strong polypropylene which is tough, durable and impact-resistant • Built to last - all Rock products come with a 15 year manufacturer's warranty against manufacturing defects arising from faulty workmanship or materials • Expandable - leave your packing worries behind with Sunwave's expander zip which can be opened to increase the volume of the case, providing valuable additional packing capacity for any last-minute extras or new purchases you may need to squeeze in • Tough & Practical - 8 smooth rolling wheels and a telescopic, push-button handle will help you glide effortlessly on your travels • Integrated TSA combination lock - For your complete peace of mind, Sunwave cases are fitted with an integrated TSA combination lock • The interior has luxurious soft touch full lining and a mesh divider section. The design also features a convenient zipped inside pocket and elasticated packing straps to keep your clothes securely in place