Zip ties, also known as cable ties, are simple, flexible fasteners used to hold items together. They are made of durable plastic and consist of a long strip with a ratchet mechanism at one end. When the strip is threaded through the ratchet, it creates a secure loop that can be tightened but not loosened without cutting. These versatile tools are commonly used in various applications, from organizing cables and wires to bundling items in construction and gardening. Available in different sizes and colors, zip ties are popular for their ease of use and ability to provide a strong hold without the need for additional tools.