[Mgs] MGB Cockpit Cover

[Preston Smith]

Hi all!

Does anyone have any experience with moss Motors cockpit cover 237-900 
for an MGB? What is it made of and does it repel light rain? Would it 
serve as a second cover over the tonneau to keep the interior of window 
and dash relatively dry?  How is it mounted?

In a nutshell is it worthwhile?  Or is an alternative product better? 
AT $45 it is almost disposable.

Thanks

Preston