Regarding model size: bust circumference 84CM/33inches (extended chain 10CM/4 inches) Waist circumference is 31 inches (extended chain 10CM/4 inches)Handmade products Size can be customized If you want to adjust the necklace to a smaller or larger length, please let me know (send a message), and we will meet your needs. Please provide the measured value Body Chain Care Instructions Fashion jewelry will lose luster when exposed to moisture, oil, salt and acid. -Store your fashion jewelry i