You may have purchased the PL1780 series case and now you want to add Pick N Pluck foam, your foam is either warn, dirty or you want to have different custominserts depending on what you want to place in the case. Whatever the reason custom fit your stowage of equipment for maximum protection with the Pick N Pluck Foam 4 piece set. Set will convert or restore your ability to add ultimate protection for the equipment you stow in your Pelican PL1780 Series Case. Pick N Pluck foam is pre-perforated in small cubes for easy removal of foam and allows easy shaping of foam for custom sizing around all types of items. Three piece foam set consists of three Pick N Pluck foam section. Fits Pelican Cases: PL1780 Case PL1780NF