What is the use of pulley in window shades and blinds?

The pulleys are used to transform any hand-draw wood rod and ring system to a cord-operated system. The pulleys should be adjusted properly by experts. Mostly, window covering companies offers free installation service of shades and blinds. Fifty shades and blinds is a window covering company who serve in ROWARD, DADE and PALM BEACH and provide free measurement and installation services.