Here is a revised description within 400 characters, formatted in paragraphs without special characters or Chinese characters: This beautiful blue crystal butterfly pendant necklace is designed for women. The pendant measures 26mm in size. Crafted from genuine 925 sterling silver, the necklace features an 18 inch chain plus a 2 inch extender chain for flexible length adjustment. It makes a wonderful surprise gift for your lover, mother, wife, girlfriend, friend, daughter, granddaughter, sister, or yourself. Perfect for occasions like Mothers Day, Valentines Day, graduation, birthdays, Thanksgiving, and Christmas. The necklace comes ready for gifting.