Roto offers an elegant solution for inward opening doors made of aluminium: Solid C door hinges are easy to install, maintenance-free, and highly durable over the long term. - Elegant: concealed door hinges underline the door design without disturbing the clear lines - Neutral colours: Black or silver, matching with all main-door colours - Maintenance-free due to self-lubricating bush - Central height setting allows a quick adjustment - High degree of installation security due to perceptibly engaging of hinges; additional installation aid set as an Option - High corrosion protection and a high level of long-term loading capabilities - Easy and fast access to the installation and adjustment video due to QR code at the main-door hinge