High Density Thick Multi-Purpose Cushion Sponge Foam70D High density Sponge: The sponge is 70D high density foam sponge, it has a certain hardness, not easily deformed, and remain comfortable even service a long life . And foam can be cut to the size that you need with electric knife. Wide Applications: It can be used for benches, shoe cabinet stools, seats, bay windows, sofas, garden seats and anywhere you want. It is really suitable for swing, garden, terrace, lawn, living room and kitchen.