HOOK. Biro - Bronze ballpoint pen with twist mechanism. Spring-loaded brass clip with a chrome finish. Copper nib with a glossy finish. Body with a double finish: galvanized and coated with glossy varnish. G2 refill, Documental blue ink. Writing length - minimum 2,000 m - Bronze ballpoint pen with a twist mechanism. Spring-loaded brass clip with chrome finish. Copper nib with a glossy finish. Body with double finish: galvanized and coated with glossy varnish. G2 refill, Documental blue ink. Writing length