LED Chrome Plated Zamak Bi-Color Bow Light by Seachoice®. Red & Green Lenses. 1-mile visibility for sail or powerboats under 39'. Pre-drilled with countersunk holes to accommodate #8 screws. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an affordable cost.