The Allen Black Removable Pin Pad Tii 42mm Od 25mm Hole 25mm Structure offers a versatile and reliable solution for larger keelboats seeking a low-profile and secure deck attachment fitting. Its strong 4-piece design includes a male through-deck fitting, backing plate, threaded socket, and removable Tii-Bar, allowing for flexibility in rigging and maintenance. For added durability, a simple application of sealant can provide water-tight protection against harsh marine conditions.