The case shell is made of polycarbonate from Covestro, a company known for its use of high-quality materials. The multi-layer composite technology ensures a stronger, more durable and pressure-resistant case. Double rows of teeth provide double the strength so that the zip can be opened easily even when the suitcase is fully packed. The larger diameter wheels, encased in elasticated TPE rubber, make pushing and pulling easier and quieter than ever before. The top handle is recessed into the case so that the surface is as flat as a table. Whether you're waiting for transport, have urgent work to do or need temporary storage, this case easily fulfils all your needs. The improved telescopic handle makes it easier to attach and detach backpacks and makes retrieving items more efficient and convenient. The telescopic handle is made of aluminium alloy, which is protected by a rust-resistant and durable anodised coating. The flexible design is suitable for users of all heights. The lock is flush with the body to minimise damage from bumps and knocks. The TSA-certified function, recognised by several countries, prevents destructive opening attempts during security checks.