Windshield Wiper blades

[SubGothius]

That's called a "bayonet" wiper arm; the wiper blade attachment widget just slides onto the end of the arm. Not all blades may have this option, so check the package.

Also, apparently Volvo 240 wiper arms will swap right over and have the more common and secure J-hook attachment type:

http://www.mightyram50.net/vbulletin...eld-wiper-arms

Have also seen mention that Gen1 Toyota Tacoma arms will swap over.