Butterfly Gemstone Color Change With Temperature Necklace Butterfly Magic Emotion Feeling Mood Pendant Necklace Jewelry Feature: This color change pendant necklace is sensitive to temperature and may reflect changes in body temperature. As body temperature varies, the stone can display different colors. Different colors may appear based on temperature fluctuations. Ideal gift for ocns such as Christmas, Valentine's Day, Birthday, Anniversary, Wedding, Easter, and Mother's Day. Suitable for loved ones including girlfriend, wife, mom, or best friend. Warm Tips: Keep the product away from water. The color-changing stone may lose functionality if submerged in water. The stone is delicate; handle with care. Material: Stainless steel chain, thermochromic stone Color: Color changes with temperature Size: Chain Length 50cm / 20" For more details, please refer to the images Color: As shown in picture Quantity: 1 Piece Note: Measurements are manually taken and may have a variance of 0-2 cm, which is considered normal. Due to differences in monitor displays, the actual color may vary slightly from the image. Package includes: 1 x Necklace