Right, so for knitting socks and fingerless gloves (and a whole lot of other things), circular needles are the way to go. You can throw away your double pointed needles - they only cause tears and frustration!
If you are new to circular needles, look up Magic Loop Knitting on YouTube and let your knitting skills be revolutionised!
I have a variety of sizes of these Bamboo circular needles - these ones are 80cm long; you just choose the size you want. To keep it easy, they are all $5, and I ship them free to anywhere in the world. How about that?