1. Competitive price for promotion : Low cost from the simple structure, simple components used polyester fabric and operation way in only manual crank way 2.Basis material used : Steel torsion bar: 35 x 35 x 1.0mm Alu. fabric roller: Φ60 x 1.5mm Alu. front bar: 47 x36 x 1.2mm Alu. arms: 58 x 28 x 1.5mm (long) 49 x 20 x 1.5mm (short) 3. Max size : In order to ensure the safety of the awning on the bais of not so thick components used, Max. size: 3.5 x 2.5m (width x projection ) Other popular size available: 2.5 x 2.0m 3.0 x 2.0m 3.0 x 2.5m 3.5 x 2.0m 3.5 x 2.5m