This durable scourer is made from the fiber between the inner shell and the outer coat of the coconut, also known as coconut coir. The bristles are a medium stiffness so they will get in deep without scratching your pots and pans.
Each Scourer is 4x4x2.
I use this thing almost more than my regular dish brush. The price can't be beat and you can scrub as hard as you want without damaging your pans. I also use it to clean off our glass-top stove range and it works really well.