Search and analysis of the fingerprint is the most 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 toe touches the object, it will leave some traces to be identifiable. Each fingerprint is unique and never be the same. on the finger tip and the line along a piece of unique fingerprint logo. Color: As shown Housing material: cardboard The father and son, mother and , the twin , the 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 of yourself or of your environment Note: children over 10 years . Fingerprint is for security reasons not included Additional items that you need: some baby power as fingerprint , some blank writing paper Package Included: 1 x 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 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.