Metal: K18 (18K Yellow Gold) YG Approximate size of the heart motif: 0.2 inches x 0.2 inches x 0.1 inches (5 mm x 5 mm x 3 mm) Fitting Size: Free size (up to size 17, but size 17 may be tight) Weight: Approx. 0.4 g The heart has a K18 stamp. ※The K18 engraving is made small and inconspicuous to avoid damaging the design, so it is difficult to confirm with the naked eye. However, it can be confirmed with a loupe of around 5x magnification as shown in the image. Please consider this before purchasing. ※This product, including the heart body and the chain part, is made of 18k gold. ・Can be worn on any finger! ・Slide Free Chain! ・Cute and plump heart! ・Fashionable, cute, and stylish! ※Please note that the product images are close-up (zoomed) shots, so they appear larger. However, the actual product is small in size, and it can be subtly stacked with other rings. The chain part is thin due to the product specifications. Please be careful not to stretch it too much as it may cause damage.