Meaningful Puzzle Piece Design: Our charm showcases a puzzle piece, the universal symbol for autism awareness, representing the diverse and extraordinary qualities of individuals with autism. The unthreaded hole size is about 4.5mm-5mm,Compatible With: Pandora Charms, Biagi, Troll, Chamilia, European Style Bead Bracelets. Fits both necklace and bracelet 3mm or smaller. Autism Charms is Made of Copper. Charm 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. Welcome to our meaningful charm collection, dedicated to raising awareness for Autism Spectrum Disorder (ASD)! Our Enamel Puzzle Heart Charm features a beautifully crafted puzzle piece design using intricate enamel work, symbolizing the complexity and uniqueness of individuals with autism. The charm is completed with a heart-shaped "Love" inscription hanging gracefully on its side, celebrating acceptance, compassion, and the power of love within the autism community.You can click on "NanMuc" for More Charms for Your Unique Bracelets, Such As Mother's Day Theme Charm, Birthday Charm,12Month Birthstone Charm,Animal- Dog Cat Paw Print Panda Charm,Valentine's Day Charm,Christmas Charm,BFF Friendship Charm, Family Mom Dad Sister Love Heart Grandma House.