Metal: Recycled Sterling Silver Plating on Sterling Silver S/MTotal Length: 7.2in, adjustable from 6.2in to 7.2inHeart Dimensions: 5mm x 5.5mmWeight: 2.35gM/LTotal Length: 8.4in, adjustable from 7.4in to 8.4inHeart Dimensions: 5mm x 5.5mmWeight: 2.55gProduct Code: VAL-S-B2-NS