This is a 6 pound lot of used K'NEX parts and pieces. There are all types of parts included in the lot.  There are two zip-lock bags holding the pieces, with the contents of the two bags appearing to be different.

One bag weighs 2 pounds and has a booklet from a ferris wheel kit in the bag.  I'm guessing that the it is not actually the ferris wheel since there are some tires in the bag and there are no tires in the ferris wheel kit.

The other bag weighs 4 pounds and has a booklet in it that just shows examples of kits that were available in the early 2000s. 

The parts are all played with.  See the photos.