STRONG type PVC double balcony doors, view from outside and opening outward. Inward opening balcony doors also available. With isolated filling on the bottom. STRONG version: with outside door type lock, hinges, handles, lock, stronger sash. Serious and durable type with ALU step. Recommended width is not more than 2000 mm and not higher than 2300 mm. If doors are wider than 1600 mm automatically it comes with handle brakes