This is a pair of high quality, gold plated, banana plugs.These can accept bare wire, or piggy back other banana plugs.
You can use 18 to 12 AWG speaker wire.
They have color coded black / red rings for maintaining proper polarity.
Secure, positive contact with binding posts.
Corrosion resistant, gold plated finish
Cooper body construction and ferromanganese tips
The benefit of using banana plugs, is that it makes speaker installation a breeze. No more worring about stray strands shorting across terminals. These sturdy plugs also look nice and provide a good solid contact.