Each net contains a mix of Alder, Ash, Birch or Oak hardwood which has been kiln dried to the highest standard ensuring a top quality hardwood with moisture levels between 15-20%. The wood has been heat treated at 71 degrees for 75 minutes & is virtually mould, mildew and insect free thus ensuring a cleaner, longer burn through. Ideal for all fireplaces, chimeneas, firepits or wood burners and supplied in easy to store nets with a built in carry handle.