Colorful Chemical Structure Sticker Pack

- Handmade-Set includes three stickers: serotonin, dopamine, and endorphins- Printed with Inkjet printer on glossy vinyl paper- Durable protective laminate- Waterproof (but try to hand wash if possible)** *Colors may vary slightly due to viewing screen.**Sticker is waterproof, but if placed on a water bottle, mug, etc., it is recommended to hand wash rather than run through the dishwasher to increase the life of the sticker.