Safely arrived. I bought two “Cobra B” for Mum and myself.
We took our forefingers size and i wrote them when i ordered. I asked him to make smaller than actual our size. Because i had ordered “Cobra C” before and i had him to make the right size. But it was too loose and too big. Before we used cobra B, we had to adjust it to our forefingers a little by our hands and longnose pliers. But it wasn’t much difficult or it didn’t take lots of time.
They support us when we play the flute. Mom doesn’t feel pain with it on her finger but i feel pain a little because of fibromyalgia. But they are working well.

Safely arrived. When i ordered, i wrote my forefinger size, but “Cobra C” was too loose and too big a little for me. So i had to fix “Cobra C” by myself. It’s quite difficult for me to adjust it to my smaller size by long-nose pliers. I think it needs a trick for wire works and pliers works. I have a little bit of trick because i make accessaries by myself. But it took much time to do it. After i did, cobra C supports me playing the flute. It’s easier to play high notes than before. I don’t have much pain while i hold the flute for a long time. I think cobra RTC works well. If you use it, you should grip its edge. So it’s often problem for me because my hands often are shaking.