Guitar help: Wah pedal?

Hi, ive been playng guitar for over 3 years and i have a pretty good knowledge of my gear but some of the effects stuff completely evades me, basically though im thinking of buying a Dunlop 535q wah pedal but i need to know if these things come packed with the lead ill need to connect it thru my setup. Currently its just the guitar and the amp so i understand ill need to thread my current lead from the amp to the wah and then another lead from the wah to the guitar itself, but do dunlop provide one or should i be ready to buy a second lead, if so can anyone recommend a good'n? Thanks a lot