This is a multi-purpose ladder which we have had for some years, but my husband is in his eighties now and finds it difficult to use. It comes with original instruction sheet which, as you can see from the last photo, shows all the positions in can be used in. He found it very versatile.
If you want to check it out on the web, this looks similar to the one we bought - https://www.bpsdepot.co.uk/ladders/multipurpose-ladders/multi-purpose-ladde...
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Multi Purpose Ladder (Molesey KT8)