The K'NEX Screamin' Serpent Roller Coaster is a large, retired building set from 2001 that allows you to construct a replica of a modern steel roller coaster with a motorized chain lift and realistic sounds. The set includes over 1,200 pieces and can be built into two main models: the large Screamin' Serpent or a smaller "Junior" version. All pieces are there - checked complete. Working condition - see video for proof. Really well looked after condition. Some bending to cardboard aspects. Note: Motor battery pack - the metal spring has broken but still works if the battery is in and the connection is made. Instructions has some pages that have come loose but is complete
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