Number
on Headrail (Horizontal
Blinds Only)
If you don't know what this is you probably don't need it. In cases of very wide windows, due to the weight of the blind, the blind has to be divided into two individual blinds on the same headrail or top rail. That is that two independently working blinds are on the same top rail. It is really the same as having two blinds mounted next to each other.
The difference being that the two blinds would have two valences where two on a headrail would have one valence. There is an additional charge for two on a headrail - $45 and three on a headrail - $55.
Note: Multiple blinds on a headrail are more easily damaged in shipping.