Pelican Case 1720 Foam Inserts Set 1721 by Cobra (3 Pieces) Rifle Shotgun 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. FITS PELICAN CASE 1720- All inserts are cut to factory specs by computerized CNC (Computer Numerical Control) machines to insure a proper and snug fit. ROUNDED CORNERS FOR A SNUG FIT.