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Integral-Shape Keychain Flashlight
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A compact flashlight body inspired by the integral (∫) symbol, designed to clip onto your keys. This 3D-printable model is small, practical, and perfect for math or maker enthusiasts.You will need:1× LED module – AliExpress link1× CR2032 battery holder with switch – AliExpress link1x CR2032 batterySimply print the body, insert the LED and battery holder, and enjoy a unique pocket light that shows your love for smart design and mathematics.
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