Pelican 1551 4 -Piece Replacement Pick N Pluck Foam Set for 1550 Case for the Pelican 1550 Case. You can customize the fit of this foam set to meet your individual needs, providing extra protection for your valuable equipment. Pieces include: Lid Layer 1: , Lid Layer 2: 1.75-Inch Convolute, Base Layers: 0.75-Inch Pad, , 2.50-Inch Diced, 2.50-Inch Diced, , ,