UNIQUE TRIANGLE DESIGN, Eco friendly highlighter pen,biodegradable PLA corn with recycled cardboard barrel and cap, Triangle paper highlighter pen--Patented in USA/CANADA/CHINA/HKBarrel: Recycled paperTrim: ABS, optional of PLA corn plastic (Heat resistant till to 90 degree)Unique popular designThe first one Eco friendly triangle paper highlighter pen in the world! Recycled paper unique triangle ...