Watch the T- Rex pendant transform through a specturm of vibrant colors based on your body temperature and mood! A fun, interavtive accessory for dino lovers! Not only is it cool to wear, but it also teaches about thermochromic reactions and emotinal awarness. Great for science lovers and curious minds. Crafted with durable stainless steel and a smooth color-changing mood stone. Nickle-free and safe for sensitive skin. Every necklace comes in a gift-ready pacakge, making it a unique and exciting present for birthdays, stocking stuffers, party favor or just because! Measures 21" in length and the necklace is made from real leather! Satisfaction Guaranteed! Ello Elli is an American owned jewelry business located and operated in Southern California. We offer beautiful unique fashion jewelry and strive to offer only the best fashion jewelry on the market. Our Philosophy is simple at Ello Elli. “Great Customer Service, Superb Fashion Jewelry, Fair prices, And No compromising" Give us a try today! If you aren't happy with your order for any reason we will happily refund your order within 30 days of purchase. Beautifully made with real leather and a vibrant dinosaur mood pendant. Best of all these necklaces will not turn your neck green! Packed in a Premium gift box with a mood chart makes this product ready for gifting! -Have Any questions? Please Feel free to contact us. - Thank you For Shopping with Ello Elli!