KMFC Flat-Surface-Mount Cans feature the same materials and performance as the KMTC series, made specifically for installation on a flat surface. ^^The injection-molded polypropylene speaker cones are UV-treated and matched with Santoprene surrounds for excellent sound quality and durability in any weather. ^^The UV-resistant finish is anti-fading and anti-corrosion. Mounting hardware is forged from rustproof, 316L stainless-steel. ^^With customizable LED lighting included, your speakers can match your boats theme. ^^Great for boats with fiberglass towers or Bimini tops