At the base of the arm where it swivels, there is a plastic cover you must remove. Spread the sides of the plastic and pull up and it will swivel up and pop off. This allows the wiper arm to swivel up. There is a part on the arm which must be pried back in order to remove the refill holder. Anco refills work, but there are different styles. If you can find a style that will work it can be cut to length. This is much easier and cheaper than finding the rare blade made esp. for the Mazda 5 + they are sold in pairs so you will have a spare!
David E. Daniels, March 2010