Our Valentine's Day couples hand model powder set contains sodium alginate. It can enhance the bond, as a souvenir gift. Its use method is very simple: 1. Add the clone powder and water to the bucket and stir well with a mixing stick. 2. Dip your hand into the solution, wait 3-5 minutes for it to change color and set, then gently shake hands and pull it out. 3. Add the molding powder and water to another bucket and mix well with a mixing stick. 4. Pour the mixture into the mold and tap the rim of the bucket to reduce air bubbles. Wait for more than 30 minutes to cure, and then peel the clone layer. 5. After peeling, process and color with sandpaper as needed. And DIY handmade gifts, more romantic.