Sunwave is Superhero Suitcase! This Rock suitcase is made from ultra-strong polypropylene which is tough, durable and impact-resistant. 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.