Silvertone Keep Calm Super Girl is Here Sisters Infinity Toggle Chain Necklace. Silvertone Keep Calm Disc is approx. 0.82 x 0.75 x 0.11 (HxWxD) including loop. Keep Calm oval has an antiqued border and is topped with a crown. Same on both sides. 3mm Rolo Chain Necklace is 18 inches long. Infinity Toggle is approx. 0.90 x 0.40 x 0.10 inches (HxWxD). The infinity symbol represents the quality of being limitless or endless. Choose your favorite message to represent your love, faith, or commitment that lasts forever. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.