Hiplok's Z Lok may not look like it's capable of securing your bike from thieves. It's designed to look and function like a zip tie after all. While those are useful for securing household items they can be easily cut. However, the only thing zip ties and the Z Lok have in common are looks and function. The Z Lok has a stainless steel core that ensures thieves won't be easily able to cut through it.
To open the Z Lok all you need to do is insert a two-pronged key. The reusable lock is designed for a variety of functions. It can be used to lock up bicycles, keep equipment safely secured on roof racks and even secure luggage during flights and train trips. A two pack of Z Loks goes for about $20.