As above. Used about six times, but has now been replaced by a Ram ball phone case bought for me as a Birthday present.
Size-wise it held my old iPhone SE and currently my 7plus securely, and would guess it would hold most smart phone sizes. It’s about 4 yrs old and did not come with the rubber web thingy that sits over the top of the phone, but I’ve never had the slightest reason to doubt how secure my mobile has been held.
Lowest price I’ve seen was £30. I’m after £15 inc P&P