*Easily exchange graphics:Our new system allows you to easily clip in graphics,upgrade to new graphic for different shows or presentations in a matter of minutes.

*Easily re-tension graphics:in case of over-winding of spring mechanism,the turning gear will decouple automatically.

*Adjustable height by a telescoping pole,up to 2400mm.

*Colors avails for end covers in black,blue,green and orange.

The function changing spring force easily works by different ways smart key and sturdy knob.