If you’re a tight knitter, you’ve probably experienced bending and breaking needles.
This is a common problem when using needles made of wood or plastic.Metal double pointed needles have smooth surface, making it easier to glide the yarn along without friction, and resist bending or breaking.
If you’re a loose knitter or are working with slippery yarn (like silk), you’ll probably want needles with a little more grip. Metal needles aren’t going to be a good choice for these situations.
But wooden or bamboo needles are the perfect choice, and they’re easily available, lightweight, and comparatively inexpensive.
Lots of knitters experience hand pain, either from repetitive motion or arthritis. Companies that manufacture knitting needles have responded by making ergonomic needles, especially ergonomic DPNs.