DESCRIPTION This brass hexagonal graphite box is for storing mechanical pencil leads. It is suitable for storing 0.3, 0.5, and 0.7mm leads. This graphite box can prevent these leads from breaking. SPECIFICATIONS Material: Brass Specifications: 16 X 16 X 88mm USE AND CARE This graphite box is designed to carry leads smaller than 63mm, which are typically used for 0.5mm/0.7mm/0.9mm mechanical pencils. It is not suitable for leads used by drawing pencils. The color of brass may be changed by different users and various environments, but this is also its unique characteristic. The oxide is harmless. It would restore its original luster by cleaning with brass polish. Without any surface treatment, we hope that each product can maintain its individual marks through the owner's constant use. Please experience and enjoy this unique beauty of brass.