I purchased the Maritime ones in a high back version for my Quintrex on Ebay - a bad move. The first time I leaned back in them, it felt like I was going to keep going. They are not sturdy in my opinion, the hinges are quite flimsy.
I persisted with them for a couple of trips and then pulled them out and tossed them in the shed, where they remain, and replaced them with genuine Quintrex - I stand to be corrected, but I believe that these are made by Springfield (for Quintrex and Stacer) The Springfields are available in most of the usual places and provide a good choice of colour combinations. These are a far better option than the Maritime ones, providing a much safer, solid and more comfortable ride/feel than the Maritime. They were not that much dearer either.
Just my 2 bobs worth.
Cheers,
Camboy