📏 Method 1: Tape Measure Gold Standard

1. Locate the "Moonbone" - the thinnest wrist point (above wrist bone)
2. Wrap measuring tape twice, maintaining "Zen Finger Space" (one finger's gap)
3. Formula: Total length ÷ 2 + 0.5cm (crystal energy buffer zone)
   ✨ Best measured before breakfast - avoid 3pm fluid retention peak

✂️ Method 2: Paper Strip Alternative

• Use coffee filter/memo paper around wrist, mark overlap
• Measure flat 3x for median value (prevents angle errors)
• Asian wrist formula: Result + (1cm~1.5cm)

🔮 Method 3: Existing Bracelet Reference

• Flatten favorite bracelet into perfect circle
• Vernier caliper measurement × 3.14 = Base size
•Elastic cords: -0.3cm｜Sandalwood: +0.5cm