This set of 85 K'NEX replacement parts includes gray rods measuring 1.25 inches in length. These rods are designed for use with the Screamin Serpent roller coaster building set, and are an essential component for constructing a working coaster. The rods are made from durable plastic and are suitable for use in a variety of other building projects as well.

With these K'NEX replacement parts, you can add to your existing collection or replace any missing or damaged components. The gray color is neutral and versatile, making it easy to incorporate into any design. These rods are a must-have for any K'NEX enthusiast or builder looking to expand their creative possibilities.