Product introduction It is recommended for those who want to make lots of markers “marker maker refill pack”. Crayola with parts for 12 markers is born in the United States and has a history of more than 120 years. It is a safe and harmless painting material certified to ACMI [Art & Creative Materials Institute]. Same for my sixth consecutive year as “Mother’s most beloved brand” in the USA (From the smarty pants survey / 2009 – 2014) (From Amazon.co.jp) Safety warning If you accidentally swallow it There is a fear of suffocation.Please be especially careful in the environment where infants are nearby.