Peeper Keepers are an ultra high quality eyeglass retainer. They have a special patented silicone attachment piece that outperforms other competitor's cords you may be familiar with. They grip securely to any small to meidum temple and never need to be adjusted. Once a customer buys a Peeper Keeper, they are "hooked" for life - and we don't blame them - you will be too once you try them. These cords are proudly made right here in the USA. Since 1979, Peeper Keepers has been supplying opticians, department stores and sporting goods retailers with a broad range of the highest quality eyewear holders available. Our constant emphasis on attention to detail, both with our products and customer service, has allowed us to remain strong and competitive for over three decades. we are contiously seeking ways to improve the performance of our products and search the world over for new trends and interesting materials. We hear it time and time again from opticians, consumers and retailers alike: "Your grip ends are the greatest!" Our patented "Stay Put" grip ends are Made in the USA and attached to polyester cord, beaded cord, leather and chain. There are no moving parts to work loose and no sliding up and down the temple frame. Try Peeper Keepers for yourself and your customers - they'll thank you for it. If for any reason you are not complete satisified with any of our products, simply return them for a full refund.