Shine a light on your brand with this handy promoter! Equipped with a bright blue LED light that's activated by pressing the top button, features include a lower barrel, twist-action release, medium point, black ink refill and 3 button cell batteries (battery life subject to individual use). Add a pad printed or silkscreened logo for maximum brand exposure wherever it's used! Each pen measures 5 58"L x 716" diameter. Complies with Prop 65. 5.625" W x 0.4375" H x 0.4375" D