HRS Outdoor Roller Blinds Frame is made of  Aluminum alloy tube .as the fabric is made of HDPE 185gsm fabric

it will can provide the good shade for you window when you inside , it also can protect the harmful rays from you skin .

The HRS Products of Outdoor vertical blind is made of breathable HDPE  fabric, this can let good air circulation and blocks most harmful rays. It can offer privacy in various outdoor areas during the day and provide the best shade for you.  you can easily open and close the curtain. The roller blind is easy to assemble..it is also with an aluminum tube and the bottom tube, and also very strong. it is not easy beaking when you use it