“Sharpie has a great line of pens [but] the best Sharpie pen is the S-Gel ,” says Salazar, who prefers the 0.7mm nib (it also ...

Abstract: This letter presents a novel easy-to-manufacture ball-pen gap waveguide (GW) by utilizing commercial low-cost ball pens to have mechanical reconfigurability. The proposed ball-pen GW ...

• Roller pen with advanced fluid technology for unparalleled smoothness • 0.7 mm arrow tip for smooth and consistent writing • Waterproof ink protects against spills and increases document security • ...