Review on 🐉 Dungeons & Dragons: Silver-Copper DNDND by Boss Spangler

I bought a set of dice that change color from black to red. The bones were well done. However, it does not change color just by touching it. In my picture, the matrix in the middle is simply black/cold. I held the cube on the left in my warm hand for a full two minutes (I even tried to breathe on it). The photo shows that he has not changed. The dye is on the right side, I washed it under hot water for a few seconds. It changed color, but definitely not red. It looks more like dark purple. I didn't send it back as it was a present for my husband. And he was okay with plain black.