AsahiKASEI Saran Wrap Pen 3 Color Set (Pink, Orange, Yellow-Green) 2 Boxes "Write on your wrap and convey your feelings! This is a special pen for drawing illustrations and writing messages." Water-based ink with no unpleasant odor. Water-based, but water-resistant when dry. Microwave safe after writing on wrap. Ink is formulated with safety in mind. I am selling these because I bought too many and couldn't use them all. Anonymous Shipping Free Shipping Lunchtime, Field Trip, Outing, Going Out, Outdoors, Camping Support for Students, Wishing for Success, New Life Bento, Goods, Items, Character Bento Drawing, Memo, Fun Stationery Made in Japan