I have a property I rent out to tenants and some parts of some windows have
"gone missing". They are pieces of uPVC approx 50mm long by 20mm wide and
6mm thick with tapered ends that the handle 'sticky out bits' rest on when
the windows are closed. Does anybody know the corresct term for these bits
and if they can be obtained from anywhere either high street or t'internet?

Cheers

John