DISHENGZHEN lifting bed backrest.
Suitable for lifting elderly patient for feeding and resting. Simple mechanism - one button for lifting up and one button for lifting down.
Adjustable from 2 degree to 65 degree.
Originally bought from Amazon -
https://www.amazon.co.uk/gp/aw/d/B0CKR8BS1C/ref=ya_aw_od_pi?ie=UTF8&psc=1
Used for 1 month. Everything is working perfectly.