If you are looking for a meaningful and romantic 45th wedding anniversary gift, this crystal heart-shaped keepsake will be a good choice. Some words about love on the crystal will tell your lover how much you love her, K9 crystal materials and laser engraving technology can make this gift last as long as the eternal love between you. It can express your love for your wife or husband and can be given to each other on various occasions worth celebrating, such as Valentine's Day, wedding anniversary, Christmas, sweetest day, etc. It can also help you send sincere blessings to a couple celebrating their 45th wedding anniversary Product Specification: Material: K9 Crystal Feature: Laser engraving Size: 5.5" x 4.33"x 1.18" Approximate weight: 1.8lb Package Include: 1 x Crystal keepsake 1 x Gift box 1 x Gift card 1 x Wiping cloth 1 x Wooden LED base 1 x Charging cable Instructions of the base: Press the button for the first time, the light will change colors very slowly. Press it again and the light will change colors faster. When the button is pressed for the third time, the light will change color to white and stop changing colors automatically and each time the switch is pressed thereafter, the light will change and stay in one color. The fourth time you press the button, the color of light is red; the fifth time is blue and the sixth time is green. Press it the seventh time, the light will turn off. Press and hold the switch for three seconds to turn off the light regardless of the mode.