Compatible With: Pandora Charms, European Style Bead Bracelets. Fits both necklace and bracelet 3mm or smaller. The unthreaded hole size is about 4.5-5mm Our Butterfly and Flower Heart Charm is a symphony of beauty, celebrating the grace of butterflies and the charm of blooming flowers. It's a tribute to the enchanting wonders that nature has to offer. Charm for Women/Men: charms for your lover, mom, grandma,aunt, daughter, son, sister, brother, family, best friend or even yourself. Charm for Christmas, Mother's Day, Valentine's Day, Birthday, Graduation, Bridal, Memorial Day, Anniversary, Wedding or your other special occasion you would like to make memorable. Suitable for bracelet & necklace：The Hole Size:about 4.5mm. Compatible with 3mm European charm bracelets and necklaces.compatible with snake chain bracelet, fit pandora charms bracelets, fit for both necklace and bracelet.