What a delight to purchase my DIY tracks from iSeekBlinds. Prior to purchase l had many questions and calls to iSeek, and the guidance, patience and professional encouragement l received was exceptional. The finished result is wonderful , l love the drapes, and the assistance from the staff at iSeek is shown in the drapes themselves. The windows span is 6.5mt with a centre opening, we added extra ceiling brackets due to the weight of the fully lined blackout curtains.