Mobility walker (Greenwich se18 6yg)

Hi All
I'm looking for used three and four wheeled walkers to send to Africa for older adults. These are patients with a range of comorbidities such as: neurological conditions (e.g. stroke, Parkinson’s disease, multiple sclerosis), orthopaedic and trauma issues (e.g. fractures, dislocations, joint replacements), respiratory conditions (e.g. COPD, asthma, bronchiectasis), cancer, cognitive issues (e.g. dementia and delirium), all of which can lead to generalized deconditioning and reduced mobility. Unfortunately, they don't have access to these types of mobility aids. I am happy to come and collect anywhere within London. Thank you all in advance