Product description: High performance with balanced performance. It is both high dimensional and comparison to items such as smoothness, break-resistance, and stain-resistant. The new manufacturing process makes it smooth and smooth. The new formula uses special oils for the raw material, which makes graphite and resin carbide smooth when writing, giving it a smooth writing experience. Case construction for ease of use. The case structure is highly maneuverable with repeatedly researching and observation of behaviors. One hand operation with the case facing upwards reduces the risk of lead spilling. Simple case design. Coloring based on the core color (black). Simply peel off the sticker after purchase to create an unmistakable design that fits perfectly in your pencil case or desk area. Details: Lead diameter: 0.2, Hardness: HB; Quantity: 20 pieces; Product size: W 0.8 x D 0.3 x H 3.1 inches (20 x 7 x 78 mm); Weight: 0.3 oz (9.8 g); Material: Case: Recycled POM, Material: Cap, Cover: Recycled PC