Refill hardness: 2BB Function: Refill for graphite pencils Applicable scenes: Writing; Coloring; Painting Safety standard: GB National Standard Materials: Native Wood; Natural Clay; Graphite; Calcified Toner; Environmentally Friendly Resin Binder Key benefits Versatile 2BB hardness range supports smooth writing with clear lines and moderate shading for sketches. Ecoconscious composition uses native wood, natural clay, graphite, calcified toner, and an environmentally friendly resin binder. Safety compliant with GB National Standard provides assurance for everyday use. Why you need it Refill designed to deliver consistent graphite performance across writing, coloring, and painting tasks. Suitable for a variety of surfaces and projects, enabling seamless transitions from notetaking to art detailing. Use scenarios Writing and notetaking at school, home, or the office: delivers steady, readable text with comfortable tactile feel. Coloring and sketching in notebooks or journals: enables light to midrange shading for depth and emphasis. Craft projects and basic painting prep: provides reliable graphite marks for outlines, guides, and tonal planning.