These 6" x 9" Scouring Pads are made from synthetic fiber. They are great for scrubbing deposits off of various metal components in your espresso machine and/or grinder (such as milk that's been baked onto the steam wand). The nylon is a great abrasive for hard to removed deposits when you clean the parts of the grouphead in your espresso machine and other equipment, but it won't scratch the metal.
These are essential scrub pads to keep your equipment and espresso machines, clean. The synthetic fiber is quite durable. These pads should last a long time. They are typically used in kitchens to clean baked-on food and grease from pans. They are super for cleaning espresso equipment.
These pads are much larger than the ones you might have in your home kitchen. They are LARGE - 6 inches by 9 inches. You'll get a set of six scouring pads in each pack.