Pentel Mechanical Pencil Refill Pentel Ain 0.5mm 4B

Discover the Ain Stein leads, engineered with a ground-breaking formula for unparalleled strength, darkness, and smoothness. Crafted with a ceramic cell structure, they boast about 10% more durability compared to traditional Pentel leads. Encased in a distinctive oval-shaped tube featuring a swivel top lid, ensuring your leads stay securely stored. Ideal for a variety of tasks, from everyday writing to precise drafting, these leads are compatible with all Pentel automatic pencils. Revolutionary formula for unmatched strength Ceramic cell structure enhances durability Oval-shaped tube with swivel top lid for secure storage Suitable for general writing and drafting Compatible with all Pentel automatic pencils Lead Length: 60mm Line Width: 0.5mm Lead Hardness: 4B.