Ours exclusively, rhinestone-studded square magnets with larger center stone. Even more impressive in person, all quality components -- no plastic or acrylic. Super strong magnets hold through any material, yet are easy to reposition. Approx. 1/2", set of 4, comes in convenient velvet-lined storage case.
Magnet Safety Warning -- Swallowing hazard, not for small children. Keep away from pace makers and other electronic devices. Read handling instructions that come with product.