There are several different kinds of needles. The type of needle used depends on the project or material that you're working with.
1. Big Eye Needle: This needle is made of 2 needles smoldered together. The large eye allows you to pass ribbon, twine, yarn, and other large fibers through it easily.
2. Twisted-Wire Needles: These are incredibly pliable wires that let you string a wide but flexible material such as ribbon with beads with somewhat small holes, like crystals or round beads.
3. Sized Needles: These needles are available in size 10, 12, 13, and 15 (I usually use size 12). The size you use depends on the size of the hole of the beads you want to use. The larger the needle size number, the shorter the needle and the smaller the eye and tip.