CACTUS is a collection sure to be noticed! Unique in design, the collection features injected shock-absorbent corner protectors, water-resistant zippers and DELSEY's patented SECURITECH? lock system, providing an additional layer of security for your belongings. The bags are also equipped with DELSEY dual-advanced wheel system, with back wheels 20% larger to resist wear and tear, and accommodate both 2 and 4 wheel use.