These sheets are made of granulated cork obtained from cork recycling that is then is compressed obtaining different densities of agglomerated cork It's eco-friendly, 100% natural, renewable, recyclable, and biodegradable. Cork is soft, lightweight, versatile, impermeable, insulating, and very durable, versatile, dust and dirt repellant. It's great for craft projects. Very easy to work with - no problem to cut, with a knife or scissors- Beautiful for scrapbooking projects and shaping cuts, cardmaking, and labels. And for many other decorative uses inspired by your creativity.