High Density Foam - 1.8Lb (Poly) Firm

Flexible polyurethane foam (FPF) is a chemically open cell complex polymeric product having a broad range of load bearing capability and resiliency, offering comfort as cushioning material for furniture, bedding, carpet underlay, and automotive interiors.

Firm refers to the how hard the foam is, not the quality.

1.8 refers to density ie; quality