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STEM learning through experience: The child learns in practice the principles of solar energy
Just screw this patented adapter into the existing E27 fitting and then screw in the bulb (max 60W traditional / 20W energy-saving / LED)
Adult supervision recommended during assembly
Robot arm construction components
Salt Water Drive: Uses innovative Mg-Air fuel cell technology
EcoSavers Draft Stop Cover - Canvas Cotton powerbank STEM learning through experience: TheCold air blowing from under the door or window? Create your own, effective and ecological barrier against drafts with the universal EcoSavers Draft Stop Cover! This is a unique product that combines energy saving with creative recycling. You receive a durable cover (roller) made of natural cotton canvas with a maximum length of 90 cm. The whole idea is that you fill it yourself with materials available at home old newspapers, unnecessary clothes,
US$ 13.99
US$ 39.90
US$ 24.99
US$ 15.99
US$ 39.99