Review title is Versatile, but watch out for short springs that come loose! [SEP] These work as advertised. Big enough to fit my large fingertips without hurting them. They are a hard clear plastic with a metal rod and a metal spring. Make sure when you get yours to check the back end to see if the springs are aligned in the slots. If not, slide them with a fingernail or tool until they go into the slot. The batch that I received have metal springs that barely make it into the slot, which makes the spring pop-out if I open the clips all the way. If the springs were long enough, these would get a 5 star rating from me. As they are, I cannot recommend them. However, I do like that they come individually wrapped so they could be gifted in sets of 5 or 10 and the receiver would know the clips are unused.