- SMART DESIGN: The lock bracelet and key necklace set features a bracelet with a diameter of 2.2 inches, designed to fit small wrists. Please measure your wrist before purchasing to ensure a proper fit. The necklace chain measures 19.8 inches. This romantic couple's jewelry symbolizes that only this key can unlock the heart lock bracelet, making it a meaningful gift. - PREMIUM QUALITY: Crafted from high-quality titanium steel, this love heart bracelet and key necklace are made using advanced laser cutting and polishing techniques. The materials are anti-rust, nickel-free, and hypoallergenic, ensuring comfortable wear. The bracelet boasts a smooth, shiny surface with excellent craftsmanship, long-lasting color retention, and sparkling rhinestones that enhance its charm and elegance. - ROMANTIC COUPLE GIFT: This unique design of a women's heart lock bracelet paired with a men's key necklace makes it an ideal romantic gift for girlfriends and wives on special occasions such as Valentine's Day, Christmas, birthdays, weddings, and anniversaries. It's a beautiful way to express your everlasting love and commitment. - USE SCENARIOS: 1. Surprise your partner on a special date night by gifting this set, symbolizing your unique bond. 2. Celebrate anniversaries by wearing this jewelry set together, reminding you both of your enduring love. 3. Present it as a heartfelt gift during holiday celebrations, making it a memorable moment for both of you. Choose this elegant lock bracelet and key necklace set to showcase your love in a practical and stylish way.