yeah, was thinking that is a car blade that has been made to fit, should be easy enoughLooks like it's been 'Adapted'!
Remove the wiper from the bracket and I think you'll find the wiper blade the older 'Hooked' style fitting. Looking at the bracket on your arm, you will probably have to remove the pin from the new blade to allow the bolt to go through.
local transport parts company sourced them for me and will be here on Friday, will see if same when they come, if not i will try this route, thanks a million.They are not car fitment, but commercial. They are called bolt through and the "bridge" width is the crucial dimension. I went through this sourcing blades for my boat. Got them from transwipers.co.uk in the end. Very helpful and a choice of stainless or mild steel
Think im sorted will see tomorrow when they arriveTry Bison parts (bisonparts.com?)