The most comfortable hook you will ever use
These hooks are amazing. Once I got over the fact they looked like a toothbrush, I couldn't believe how lovely these are to use.
Since my last stroke, I only have partial use of my hand and thus very poor grip. I was unable to crochet at all. After buying the Addi Swing hooks (3.5 & 5.0mm), I've been able to take it up again. They are perfectly ergonomically designed to sit in your hand, shaped to your palm, and uses the action of moving the hook in and out of the yarn to hold in place firmly. It is so comfortable to use that I once sat for 5 hours and made a beanie hat in one session. No blisters, cramping or pain to make me stop after half an hour or slow me down (although I'm the first to admit I'm not exactly the Mo Farrah of the crochet world!).
I've just bought my mother the 4.0, 4.5 & 5.0mm hooks to stop her from stealing mine, even though she has no problems with her hands. They really are that good.
Truly the Rolls Royce of hooks, and well worth the money. Topped off by the excellent service from the Woolstack staff, I can't recommend it highly enough.