Unique Heart Puzzle Design:This couple pendant necklace has a clever design.Matching the lock and the key together to become a love heart, that engraved with I love you.This means that he and her are locked together and never separated.It symbolizes great love.The puzzle necklace is the good choice for lovers to express love. Specification:Lock Size:0.86 inch(2.2cm) height,0.66 inch(1.7cm) width;Key Size:1.28 inch(3.3cm) height,0.86 inch(2.2cm) width;Chain Length:22 inches(55cm). Premium Material:Made of high quality stainless steel,lead-free, nickel-free.Excellent polishing and plating process,keep color lasting. Wonderful Gift:We use exquisite jewelry boxes.Great gift choice for lover,boyfriend,girlfiend,couple,Birthday,Valentine’s Day,Wedding,Engagement,Mother’s Day,Easter,Thanksgiving and Christmas. Consumer Service:We are committed to provide the best jewelry and best services to you. Your demand and recognized is our continuous development increased power! If there is any problem with your purchase, please feel free to contact us, we will try our best to help you.