These blade sets simply clip on and off at the touch of a button under the clipper

Heiniger blades are said to be the best quality clipper blades you can find on the market. 

There are a lot of cheaper blades, but getting what you pay for really applies with clipper blades.  Used correctly you achieve 3 times the amount of clipping compared to other brands before they will need re-sharpening. 

• Suitable for all models of Snap-On: Andis AGC, AGC2, Moser 1245, Wahl KM-2, Oster A5 and others.
• Fits Oster A5 and Wahl KM Series..
• Made In Europe