While you wait for answers, we may have found some information which could help you.
Click here for Douglas Honeycomb Shade
Finding spare mount brackets for Velux pleated blackout blinds?
how can i shorten the width of my levolor vertical blinds?
How to repair a torn place in my silhouette blind?
How do I open Velux blind completely stuck?
How can I fix my velux blackout blind GPL 308 with broken cord?
Replacing cord for high Velux window?