Flexi Giant Neon Tape dog leash is available in multiple sizes Flexi is a family business based in Bargteheide. For more than forty years, Flexi has been making roll-up leashes, relying on the best advanced technology, fine materials and craftsmanship. Flexi dog leashes are a concentrate of ideas, technology and attention to detail. Every single model is assembled by hand and undergoes more than one hundred quality tests before being placed on the market. The result is a quality accessory that fully meets all needs. I roll-up dog leashes are products that, unlike traditional leashes, allow us to vary the length of the cable.