Single razor blades and safety razor blades
Here we have the multi blade safety razor blades and the single shavette razor blades.
The multi blade safety blades are very expensive and a pack of four will cost around £6.00. The shavette razor blades cost £4.00 for one hundred, so are much cheaper.
Even though the shavette blades cost less they are not made from poor quality and will result in a very comfortable shave that is closer than the safety blades will give.