We want some quite small and very simple spring roller blinds. The size is about 100cm wide and 50cm drop. By 'simple' I mean that we don't want any sort of clever latching mechanisim in the blind, we just want to be able to pull it down and hook it at the bottom of the window with the tension remaining. This is so that they will work on some non-vertical (boat) windows.
So can anyone suggest a supplier for something like this? All the 'spring roller blinds' I can find have complicated 'latching' spring mechanisms and we definitely don't want this. I've tried sending a couple of enquiries to suppliers but they really don't seem to have much idea what they're selling so I've not had sensible answers.