Seasar's GRAVIUM, a practical, maximum-performance mechanical pencil. New, unused, and available for immediate purchase. Shipped anonymously and immediately. Seasar, who has reviewed numerous writing instruments, spent two years developing this mechanical pencil with the theme of "practicality MAX." It achieves a fusion of opposing characteristics: "heavy yet writes lightly." The 37g heavyweight body incorporates a 13g brass weight, designed for optimal weight distribution. The pen's own weight naturally assists writing pressure, providing a light writing feel the less force you apply. The body surface uses a soft-feel coating, "Neo-Lavasan." It features a smooth, comfortable texture and excellent grip. The clip can be easily attached and detached by turning the top crown. Removing the clip reduces the moment of inertia, enabling even lighter writing. It's equipped with an O-ring to suppress fine vibrations and rattling during writing, achieving a high-quality writing experience. ■SPEC ・Country of Origin: Japan ・Lead Diameter: 0.5mm only ・Color: Black only ・Weight: 37g ・Total Length: 140mm ・Maximum Diameter: 11.3mm ・Center of Gravity (with clip): 69mm from the pen tip ・Center of Gravity (without clip): 66mm from the pen tip (makes writing easier) ・Guide Pipe: 3mm (fixed) ・Chuck: Metal chuck (no cushioning function) ・Clip: Detachable (original clip with dedicated mold) ・Eraser: None (no cleaner pin) ■Materials ・Weight: Brass, adhesively fixed to the shaft ・12-sided body: Aluminum (Neo-Lavasan coating) ・Clip: Iron ・Top Crown: Brass ・Knock Cap: Brass ・Lead Tank: Resin