Our couple hand model diy hand model contains sodium alginate. It can record the growth process, fine capture every fine line and fingerprint, so that you create a more perfect product, is a kind of love witness. The way to use it is simple: add the clone powder and water in a bucket, mix it evenly with a mixing stick, put your hand in the solution and wait 3-5 minutes for it to change color and set, then gently shake your hand and take it out. Add the molding powder and water to another bucket and mix well with a mixing stick. Pour the mixture into the mold and tap the edge of the bucket to reduce air bubbles. Wait for more than 30 minutes, cure before peeling off the clone layer. After peeling off, sandpaper and color as needed. Perfect for teens, adults, couples and friends to create priceless memories together, it's a great choice for gift-giving.