There are a few types of spatula: steel, wood, plastic, rubber or silicone. Personally, I am a big fan of the Chinese steel spatula, which is perfect for a wok. The thin and slightly curved steel surface is great for stirring, tossing, and flipping during cooking. It also works marvelously for shoveling and scooping out the food when it’s cooked.
If you have a nonstick stir-fry pan, I recommend using a wood or plastic spatula to avoid scratching the nonstick surface. A wood or plastic spatula is thicker, so it’s a little clumsier to use, especially when you are trying to get beneath the food. My hubby refuses to use a wood or plastic spatula because he can’t flip his breakfast omelet with it! I don’t recommend rubber or silicon spatula because it’s just about impossible to use it in the wok or stir-fry pan. They are too pliable for the continuous stirring and tossing motions of Chinese stir-frying.