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Concealed Precision: The Hidden Needle Ring
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This 3D-printed ring model blends sleek aesthetics with a clever hidden feature — a concealed sharp needle. Printed with PLA at 0.08 mm resolution, the needle is strong enough to pierce cardboard or poke through tape, making it a handy tool for opening packages. The uploaded model is designed for ring size 6. Scaling up or down by 5% effectively adjusts the fit while maintaining functionality. Scaling beyond this may result in a bulky ring head (when enlarged) or a weakened joint (when reduced). For custom sizing needs, please leave a message.
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