Window covering

A window covering comprising:

• a rotatable roller rotatable in a first rotational direction and a second rotational direction, the rotatable roller being mountable adjacent to a window;
• window covering material attached to the rotatable roller such that rotation of the rotatable roller in the first rotational direction extends the window covering material from the rotatable roller toward a fully extended position and rotation of the rotatable roller in the second rotational direction retracts the window covering material toward a fully retracted position;
• a positional adjustment mechanism positioned in the rotatable roller, the positional adjustment mechanism having a spring, the positional adjustment mechanism comprising at least one of:
• comprises:
• a resistance mechanism configured to apply an extension drag force to the rotatable roller during rotation in the first rotational direction and a retraction drag force to the rotatable roller during rotation in the second rotational direction;
• wherein the resistance mechanism comprises:
• a housing;
• a first torsion spring within an inner passageway of the housing;
• a first torsion spring support on which the first torsion spring is positionable within the inner passageway;
• at least one second torsion spring;
• a second torsion spring support on which the at least one second torsion spring is positioned such that the at least one second torsion spring is between the second torsion spring support and the first torsion spring support and the first torsion spring support is between the first torsion spring and the at least one second torsion spring.