The eye of this needle takes super bulky yarn with no problem yet I also use these needles with lace weight and fingering weight. The color also makes them easy to spot amidst all my other silver gear.
I love my Chibi needles and case. The case helps me keep from losing the needles. I also like to put a large safety pin or rather a safety pin made from a paperclip through the case lid and attach stitch markers to the lid to keep those handy, too. I asked for a second set for Christmas after misplacing the case and everything and then yesterday found it in a forgotten pocket in my knitting needle wrap.
I love the needle size to use for yarn and the bent tips and even the copper color. I only wish they were actually magnetic so they'd be easy to find if I drop them through my recliner. Lately I want everything magnetic for this reason! ;o)