Replacement refill — Color: Black. Material: Natural rubber. Key benefits Restores function quickly: swap in a fresh natural rubber refill to return an item to full working condition without replacing the whole product. Clean, predictable performance: natural rubber provides consistent resilience and surface contact for reliable everyday use. Cost-effective spare: keep a refill on hand to avoid downtime and extend the life of the primary tool or accessory. What this product does Serves as a direct replacement refill made from natural rubber in black. Use it wherever a like-for-like natural rubber refill is required. Simple to install: designed to replace worn or depleted rubber components and restore intended function. Important attributes Color: Black — neutral, professional appearance for visible or concealed replacements. Material: Natural rubber — provides elasticity and surface conformity typical of natural-rubber components. Function: Refill intended to renew a rubber element; performance reflects the properties of natural rubber (resilience, surface contact, wear characteristics). Practical use scenarios Office or school: keep as a spare refill for rubber-tipped tools or accessories to avoid interruptions during work or study. Art and design: replace worn rubber elements to maintain consistent contact and control when working on sketches or mixed-media pieces. Maintenance and repairs: carry as a compact spare for small rubber components in equipment where a natural rubber refill is specified. Note This listing specifies color (Black) and material (Natural Rubber). Confirm that a natural-rubber black refill matches your device’s requirements before purchase.