Size 1 1/4" diameter. This Custom made Super smash bros necklace is made out of metal and the emotions of gamers. When worn it changes color according to your mood or body temperature! may differ to the picture slightly as it is really really hard to take consistent photos. Each necklaces is different and unique. Keep in mind while we also try for quality control occasionally one slips by with blemishes or defects, if you are not pleased please contact us first so we may replace it or give you a refund!