Magnetic attraction or repulsion creates tactile resistance, indexing or return force.
What it is
Magnetic Interaction is feedback created by magnets attracting or repelling each other or nearby metal. As parts move, the changing magnetic force pulls them into position, pushes them apart or returns them to a resting point. It is one of the most common feedback mechanisms in sliders, coins and many other fidgets.
How it feels in your EDC
Magnets give a contactless kind of feedback: a pull you feel before parts meet, then a snap into place. Depending on magnet size, strength and placement, the feel can range from soft and smooth to strong and decisive. Because parts are held by magnetic force, movement often feels clean and quiet until they meet.
What to look for
Look at how strong the snap is and whether the brand describes magnet count, size or grade, which shapes the feel. Check whether magnets are fixed securely and whether parts are swappable to adjust strength. Keep strong magnets away from cards, phones, mechanical watches and medical implants such as pacemakers.
是什么
磁力交互（Magnetic Interaction）是由磁铁之间或磁铁与附近金属之间的吸引或排斥产生的反馈。零件移动时，变化的磁力会把它们拉到位、推开，或让它们回到静止点。这是推牌、硬币和许多解压玩具中最常见的反馈机制之一。
上手感受
磁铁带来一种非接触式反馈：零件相碰之前就能感到拉力，接着“啪”地吸合到位。根据磁铁尺寸、强度和位置不同，手感可以从柔和顺滑到强劲果断。由于零件由磁力保持，移动过程通常干净安静，直到吸合。
选购要点
看吸合力度，以及品牌是否说明磁铁数量、尺寸或等级，这些决定手感。确认磁铁是否固定牢靠，零件能否更换以调节强度。强磁铁要远离银行卡、手机、机械表以及心脏起搏器等医疗植入物。
