Our Recycle Soylent Green Cat Eye is the perfect accessory to show others that you care about the environment. Remember, waste not, want not! “Cat Eyes” have been in use the US military for decades. Anyone who has ever used a helmet band or patrol cap knows what these are. They can be used in pairs or individually. Our Cat Eyes are a high grade of non-toxic, durable PVC. The hook backing allows the Cat Eye to be fixed to any loop swatches found on headwear, packs, plate carriers, webgear and more.