Ideal uses for foams are for mattresses, chair pads, seat pads, cushion, chairs, furniture, pillow, seat cushions, chair cushions, patio cushions, furniture cushions, rocking chair, car seats, upholstery repair, chair upholstery, foam mattress, and crafts. BayTrim instructions- FOAM PACKAGES NEED TO BE OPENED IMMEDIATELY ONCE YOU RECEIVE THE PACKAGE. DO NOT LET THE FOAM SIT UNOPENED FOR MORE THAN 1 WEEK! DO NOT OPEN WITH A BOX CUTTER! START BY MAKING A LITTLE INCISION AND BREAK IT FROM THERE. Premium High density upholstery foam padding Foam is ideal for indoor/outdoor furniture, camper, boats, yoga mats, sleeping mats, and craft project. Certified Green Business-Vacuum-Compressed packaging reduces shipping and environmental impact. Density : 1.8 , 51 lb compression made in the U.S.A.