About Da Qian Design Concept: Inspired by traditional Chinese philosophy. “Qian” stands for the vast sky and “Da” embodies the earth’s virtue, carrying the wish of shifting fortune in your palm and melting away stress. Developed over four months with nearly a hundred prototype iterations, it features endless‑rotation gameplay with finely tuned acoustic rhythm. Steel‑Ball Magnetic Mechanism: Moving past standard neodymium buckyballs, it adopts precision non‑magnetic YG6 steel balls and 440C martensitic stainless‑steel balls for improved durability and longer‑lasting feedback. Stacked‑magnet design boosts kinetic energy and vibration, while enabling easy part replacement upon wear. Custom layered magnets deliver pleasant high‑frequency friction sounds. The 6‑ball & 8‑magnet configuration yields 24 segments per full rotation with balanced 15‑degree spacing. Versatile Interchangeable Play: Single‑track three‑hole mechanical structure supports three play modes via different component layouts: high‑low tone, dense feedback and crisp tactile clicks. Swap the middle plate from the accessory kit to switch to pusher‑coin mode, offering segmented and dense feedback. Its distinct hoof‑beat‑like magnetic rhythm brings satisfying stress relief without loud disturbance.