Couldn't be more pleased from the shop's service: For such a simple item we have gone through a process to verify that it will fit my needs. They even asked me to measure the width of the frame of my existing panels, then went over to the warehouse to veryfy that they are sending me the appropriate bolt length. 

Calidad： Productos reibidos de acuerdo a lo solicitado, entrega antes de tiempo, y de perfecta calidad.