Search and of the fingerprint is the famous work for forensics. When people touch the object, there will be some fat or sweat dried left to the fingertip. In the same manner, when the palm or touches the object, it will leave some traces to be identifiable. Each fingerprint is unique and never be the same. The on the finger tip and the along a piece of unique fingerprint logo. Color: Housing material: cardboard The father and son, mother and , the , the fingerprints have formed another finger yarn properties. Small detector: Through the practice of own hand, let children do experience and perception interesting , experiment, care for your baby observation and scientific exploration spirit. In these activities, see disclose and record fingerprints of yourself or of your environment Note: Only for children over 10 years old. Fingerprint is for security reasons not included Additional items you need: some baby power as fingerprint , some writing paper Package Included: 1 x bottle for fingerprint 1 x Brush 1 x Black Plastic 1 x ink pad 1 x Motion 1 x Fan 1 x pair goggles 1 x Work badge 1 x Transparent tape 1 x Manual 1 x case sheet Note:Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3 cm.