He must be made of silicone. He must be heat-resistant. It should be nice and long. He must be able to handle well. He is to be stable and last. He is supposed to be dishwasher safe.
All of these criteria are met here. Through the bright red it is also eaten out more quickly. My drawer is so full, there is really the color is very helpful. Since I have a lot of tall vessels, there should be no short spatula. The metal core in the Kaiser Teigschaber you could tell he is but thus very comfortable to hold. Much like a thicker knife handle with silicon covering. Especially during prolonged work with the spatula advantageous.
I hope I've made the right choice and I am glad that I can the emperor pot and spatula call my own.