A slider whose plates are held together mainly by magnets, so they can move in more than one direction.
What it is
A free-floating slider (often shortened to FFS) has no fixed rail. Magnets hold the plates in register, and the plates can slide, pivot or lift off and snap back. Some designs add a pin or stop only to limit how far they travel.
Why it matters
Players like free-floating designs for the extra ways to play and the strong magnetic snap. Because the plates are not locked to a track, magnet strength and layout decide how secure it feels in the pocket.
Also known as: FFS, Free-Floating Slider, Floating Slider, 浮动推牌.
是什么
自由浮动式推牌（常简称 FFS）没有固定导轨，靠磁铁让板片对位，板片可以滑动、转动，甚至拿起后再吸回原位。有的设计只加一个销或限位来限制行程。
为什么重要
玩家喜欢它玩法更多、磁吸更有力。因为板片没有锁在轨道上，磁铁的强度与排布决定了它放在口袋里是否牢靠。
又称：FFS、Free-Floating Slider、Floating Slider、浮动推牌。
