Our DIY hand film powder set is carefully formulated with model powder: talcum powder, sodium alginate, calcium chloride, and casting powder: calcium carbonate, calcium sulfate. Designed specifically for easily creating 3D hand models and freezing precious moments. The usage method is extremely convenient: Add the formed powder and water to the bucket and stir evenly with a stirring rod. Put your hand into the solution and wait for 3 to 5 minutes. When the solution changes color and solidifies, gently shake your arm to take it out. Put on gloves, add the cast stone powder and water to another container, and stir evenly with a stirring rod. Pour the mixture into the mold and tap the edge of the bucket gently to reduce air bubbles. Wait for more than 30 minutes until it solidifies, and then peel off the outer layer with a sharp stick. You can use sandpaper to treat the surface of the model to make it more beautiful. And it can precisely fill the gaps to enhance the smoothness of the model surface.