Q-pot Half Birthday Used for a twin's half birthday at 6 months old. There are pencil marks on the back, but they are hidden and not a problem. Since I didn't attach names, I think it can be used in a clean state. There are no snap buttons on the back (because the size was tight). You can attach snap buttons or adhesive Velcro from a 100-yen shop to fasten it. Please understand that this is handmade by an amateur.