Product Description: Polyurethane Replacement foam insert Includes: 1 Piece 4.0" Thick 1 Pieces 2.00" Thick 2 Pieces 1.5" Thick Overview: Foam is the most common type of foam used in cases. The foam is soft enough to provide flexibility for items, but also dense enough to provide cushion for even the heaviest of items. PRODUCT FEATURES: REPLACEMENT FOAM INSERTS BY COBRA FOAM - manufactured locally, specifically for protective cases. TOP QUALITY POLYURETHANE FOAM - The foam is soft enough to provide flexibility for items, but also dense enough to provide cushion for even the heaviest of items. All inserts are cut to factory specs by computerized CNC (Computer Numerical Control) machines to insure a proper and snug fit.