Uni Smudge Proof Lead Eco Pack

About the packaging: Disposable plastic cases are currently the mainstream for sharp refills. Students, who are the main users of the product, have made comments such as, "It's a waste to throw away clean cases," "Empty cases accumulate quickly because 0.3mm cores are easy to lose," and "Isn't there a more environmentally friendly way to use them?". Interest in sustainable manufacturing and consumption behavior is increasing as a social situation. Uni developed this product while looking for the next level of sustainability for sharp refills while taking advantage of the convenience of existing cases. About the lead: Uni Smudge-Proof Lead was created to minimize smudging compared to traditional pencil lead. Even when a highlighter is used over the top of this lead it resists smudging. Uni Smudge-Proof lead sustainable refills are available in .3mm and .5mm, and your choice of lead density: HB or B. This lead will keep your pages and notebooks cleaner! Available in .3mm and .5mm and your choice of density: HB or B .3mm includes 100 lead pieces (4 times the normal amount) .5mm includes 160 lead pieces (4 times the normal amount) Check out Uni's lifetime metal lead case! This product is now also available in a half size pack