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