I just received them and opened the box with bated breath! I always wanted to have many crocodile clips for my workshop! I bought 4 sets! Hahaha... Well, this purchase is definitely worth it. The silicone is very nice and soft, and they clamp as they should. HOWEVER, BE CAREFUL! The crocodile clips are indeed 20, but the sets are not 20, they are 10. It's logical since each cable has 2 crocodile clips. I just want to point it out because the product listing says 20 sets. When we say we're going on a trip with 20 pairs, we mean 40 people, not 20, right? Hahaha... Well, have fun with your experiments!