Modular Self Centering Boat Bunk Glide On Kit | Tie Down Engineering 86296White Modular Self Centering Boat Bunk Glide On Kit Tie Down Engineering 86296 Self centering bunk glide on's make launching and loading effortless without damaging the hull of painted, fiberglass, or aluminum boats. White color Modular interlocking guide on kit can be combined for various bunk board lengths Kit includes (4) 3 ft sections, (4) 1 ft. end sections, and mounting hardware Designed to fit two 2 in. x 6 in. x 16 ft. standard bunk boards or