Do these work?

Hello, I’ve an issue, I purchased the redmagic VC Cooler 6 professional however I unintentionally ordered the one with out the again clip, and I don't actually just like the metallic sheet that got here with the cooler, I used to be questioning if this issues had been value it. I don't actually know quite a bit about them however I've learn combined feedback about them I don't actually like holding my telephone with no case, because it feels skinny and I can't discover the again clip alone to purchase it, so… Do they work or am I cursed eternally to have cramped finger?