double roller blinds
1,cover, up and down rail made of aluminium alloy
2,one chain conrol two blinds
3.Oil brake syste

day and night double roller blinds

1.Day and night spring double  roller blinds is the best of both worlds. These style blinds are a two in one system that provides a light filtering blind for the daytime, and a privacy black out shade for night. This allows a warm filtering of light to enter your home during the day, and lets you relax in absolute privacy at night-time.

2.One piece operating chain control two piece blinds open or closed

3.Flexible operation: pull the chain to roll up or just touch the down rail of blind which use the elastic force of spring to roll the blind up.

4.Oil brake system makes the roller blind work smoothly and quietly.

5.Built-in limit switch system used for adjusting the elastic force of spring.

Remark:1.sunsreen fabric or blackout fabric,about 500g/m²

               2.The POLYESTER fabric is the ordinary type light fabric,weight about 250/m²

                3.The weight is subject to the real fabric