Breakthrough Clean Technologies Square Cotton Patches - 3in x 3in - 300pcs/Pack with Plastic Tray. These pre-cut squares make it easy to use and are available in a wide variety of calibers to meet all of your gun care needs. Comes in a plastic stray for easy storage. Specifications for Breakthrough Clean Technologies Square Cotton Patches: Manufacturer: Breakthrough Clean Technologies Fabric/Material: Cotton Weight: 0.81 lb Package Contents: Breakthrough Clean Technologies Square Cotton Patches Breakthrough Clean Technologies BT-CP-S-3-300: Square Cotton Patches - 3in x 3in - 300pcs/Pack with Plastic Tray