1. Adopting the spring booster system can boost up the lifting pull and simplify the operation. 

2. The angle of the beads chain is versatile

3. The roller style can be available for left and right sides.

4. Specially applicative for thicker fabric (Havelock, weighty textile)

5. Assembled with 41mm aluminum tube;

6. Maximum size: W3500mm*H4800mm

Criterion collocate：

1. Assembling bracket: 2 pieces

2. Screws: 2 pieces

3. Left bracket: 1 piece

4. Right bracket: 1 piece

5. Spring in 1.3*500mm: 1piece

6. Roller shade clutch: 1piece

7. Continuous loop beads chain in 1800mm: 1 piece

8. End piece of bottom rail: 2pieces