I have some of these (different brand, essentially same mount). If the speaker fits, they're great. Don't have a lot of tilt, tho, so if you need to tilt down at a larger angle than it has....
F*** Audioquest, they're cable charlatans (along with many others, one of the worst things in audiophilia) selling mostly nonsense pseudoscience so I don't encourage supporting them even if you get their cables highly discounted (they'll work, and somewhat pretty, that's about it). Just get yourself adequate gauge for your speakers' impedance and length. This is a great site on all things speaker wire and has a handy table to use, too
http://roger-russell.com/wire/wire.htm
Personally I buy 12g copper speaker wire in bulk from Monoprice and put my own banana plugs (Sewell Silverback is my preference). If you want nice pre-made stuff and don't mind spending a bit of coin try bluejeanscable.com.