Rrwworr... It's the Year of the Tiger Cat Eye folks! PDW makes the best in class. Our company Founder introduced the "Cat Eye" in this hook and loop format around 25 years ago and has been designing them ever since. “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.