The Siphon II by Microtech is made completely from Lime Green Coated 303 stainless steel to give you the utmost strength in the design. It is classy, easy to carry and is made in the USA. The retractable tip is activated by the lever. Designed to accept Pilot G2 Mini ink refills, the pen measures 5.5″ overall when open and 3.5″ when closed. Weight: 2.6 oz. Made in the USA.