It's a classic promotional product with a fun and unique twist! This light up pen features a silver trim top and color-changing LED lights within the lower part of the barrel. Twist to write and click to turn on the light (red, green blue). Customize with an imprint and hand them out at the next conference you attend. Great for any type of business - it's a product that's sure to brighten up any marketing campaign. Measures 5 1/2" x 1/2".