Physikalisches Licht Reflexion und Brechung Modell zum Selbermachen Klasse Demonstration Werkzeug für
18,65 €
【Classroom Teaching】This physical light reflection demonstrator model will be a great teaching material in classroom, which can help students understand the principles of light refraction. 【DIY Materials】: All pieces is made of high grade material, smooth without any burrs, and durable for long lasting use.
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