I crocheted a "bear" onto a 40mm magnet. Finished product diameter: Approximately 4.5mm I've crocheted it with embroidery thread (*^^*) It's super cute for sticking prints and memos on the refrigerator, etc. It can hold several sheets! ヽ(*´∀｀) It also makes a great little gift (^_^)v *Please understand that this is a handmade item, so there may be some imperfections. I hope you appreciate it as a unique characteristic of handmade crafts. I also have eco-friendly yarn scrubbers for sale. Please check my profile^^ Embroidery thread Magnet Bear Crochet doll Amigurumi Instant purchase is OK.