Endekay is a US-based company that produces a range of oral hygiene products that have become popular with the shoppers in the States. They are not yet widely available in the UK, though if you decide that you want to try an Endekay product, or have tried one on holiday and liked it, there are plenty of online chemists where UK shoppers can buy the Endekay range.
As well as dental floss, dental sticks and floss brushes, Endekay also produces toothpastes, toothbrushes, mouthwashes and other oral hygiene products.