Nice compact kit, good range of sizes but please understand what it is for. They are designed for low heat dissipation elements, with the largest being 22 x 22, which is less than a square inch. It would be nice if they included a few more of the same size. (only 2 included) They would put this on small chips, I'll put them on consumer market router SoCs and wifi chips first. Raspberry Pi would also be a good candidate, you can cool things like small mosfets, VRMS, Ram, surface mount inductors…