Today, when you order "Invisible Elastic Thread IET", you'll instantly be emailed a Penguin Magic gift certificate. You can spend it on anything you like at Penguin, just like cash. Just complete your order as normal, and within seconds you'll get an email with your gift certificate.
200 yards of elastic thread with 3 filaments, all while being thinner than an average human hair. This amazing thread that can be stretched to 4-5 times its natural state can also be separated into individual filaments to make it even thinner!! The possibilities with this product are endless.