I, like many others here, tried just about every thimble readily available. Eventually I purchased a plastic Thimblelady thimble so I could see if I liked the style. I'm now on my second stainless steel one. They are cone-shaped with an open top. You push with the pad of your finger - not the top. It takes a bit of getting used to for some but I took to it right away. Much more comfortable for me to use. And the dimples are quite deep so hold the needle very steady. The plastic and stainless steel versions are (I think) very reasonably priced - about $10 for plastic and $35 for the stainless. Must be purchased online but very good service.