I'm sure this has been asked many times before, but I really need some advice on this.
I've bought the above machine and made the stupid mistake of ordering the wrong blades and they won't even touch his hair they just get stuck!
I'm after advice on what blades are required as not to make the same costly mistake again

Ps my boy is an English cocker spaniel called Ollie he's 6yrs old now and He's half show half worker so short hair but fluffy
Any help will be much appreciated