Description:Product parameterProduct name: STEM fingerprint scientific experiment set DIY manual identification fingerprint teaching aid experimental childrens toyCommodity name: Experimental childrens toys*Accessories: manual (record card)*1, goggles*1, black plastic film*1, badge *1 Stamp pad*1, transparent tape*1, fingerprint powder bottle*1 (empty bottle), magnifying glass*1, brush*1, air blowing*1Through own hands, experience and feel the fun of experiment, cultivate childrens observation, logic, reasoning ability, and cultivate childrens scientific exploration spirit.Reminders: 1. Keep away from fire2. Not edible3. Please place it out of the reach of children and pets to avoid accidental eatingAll products are subject to the actual productSpecifications:STEM fingerprint scientific experiment set DIY manual identification fingerprint teaching aid experimental childrens toysSelling point: Look for the work of forensic medicine to analyze fingerprints. When people touch an object, the oil and dried sweat on the fingertips will be left on the object, and when the palm or toe touches the object. It will also leave a identifiable mark. Everyones fingerprints are different, and a fingerprint pattern is formed by the lines on the fingertips. Fingerprints have different texture characteristics.note:1.Please allow 0-1cm errors due to manual measurement.2.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.3.If you have any questions about the product, please contact us, we will patiently answer f