This Stainless Steel Blank Heart Necklace offers a minimal, delicate and sleek stylishness that is perfect for any occasion. Its heart shape charm and polished finish presents a luxurious gleaming shine, and the charm's blank surface is great for engraving or stamping with your desired personalization. Great for custom engraved jewelry and creating your own personalized engraved necklace designs and other engravable jewelry like bracelets, earrings, and rings with these stamping blanks! ✦ Strong, durable, and don't easily break. ✦ 316L Surgical Grade Stainless Steel will never fade, tarnish or turn skin green, even when worn in the ocean or pool. ✦ Hypoallergenic, so don't worry about any breakouts or rashes! ✦ A great alternative to .925 Sterling Silver. Approx. Weight: 5 grams Approx. Chain Dimensions(mm): 1.5mm x 457.2mm Approx. Chain Dimensions(Inches): 0.06" x 18" Approx. Plate Dimensions(mm): 16mm x 14mm Approx. Plate Dimensions(Inches): 0.63" x 0.55" Approx. Thickness: 2.7mm