I made these myself, and you can create intricate, beautiful, and delicate glasswork using resin. There may be some burrs on the cut edges and some air bubbles in the silicone, but they don't affect the finished product, and I was able to create pieces like the ones in the photos. The selling point is that I use safe, non-toxic, food-grade silicone made in Japan that has been tested, instead of inexpensive, potentially harmful silicone molds. You can even use it for chocolate and gummy candies! Recommended for those who make fake food.