Product Category:Diy Infrared Alarm Kit
Safe and nontoxic Plastic material;
Let children have an interest in physics
Age of application: > 5 years old
1 bag * materials for making an infrared siren, as shown in the picture.
Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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