Use material: Tianhe stone size 1.5-2mm Natural pearl 14k steel is hard and easy to break, does not fade, does not need to be disassembled, can be washed *Applicable size F: Hand circumference around 14.5cm-15.5cm *Hand circumference measurement method: Take a line or string and measure it tightly around the hand. You don't need to increase the tightness yourself. *A self-adjustable extension chain behind each bracelet *Please contact the designer if you need other sizes. *This is a custom product. The general production time is about 7 working days (excluding the holiday). Please be patient. If there is a spot, it will be sent first, no urgent order! ! ! Work slowly! *Precautions: Natural ore has different textures and colors. It is unique. The color of the ore is naturally generated by the high pressure and high heat of nature, and it does not fade or fade. The natural stone has fine details such as small black spots, ice cracks, clouds, mines, and asymmetry. Avoid violent pulls and collisions with gems.