Triangle grip. Click tip to advance and retract ballpoint tip. Very smooth ballpoint ink. Triangular, latex-free grip makes it comfortable to hold and keeps pen from rolling off desks. 1.0mm metal tip writes medium lines. Refillable: Pentel BKS10 refill. Writing starts with us. Latex-free grip. Please recycle packaging. Limited Lifetime Warranty (Valid in USA Only): Each Pentel product is warranted for life against failure due to defects in materials and workmanship. For warranty service, return product for free repair or replacement to: Pentel of America, Ltd., 4000 E. Airport Dr., Ste. C, Ontario, CA 91761, USA, Attn: Quality Assurance Department. Visit us at www.pentel.com. Made in India.