8 K'nex red gears, measure 2 1/8" diameter.

11 K'nex yellow gears, measure 2 1/8" diameter.

Various smaller gears, gray and dark blue, measure 1" diameter.

K'nex chain for Screamin Serpent roller coaster has 109 large, 1 1/4" links making up 8 ft 6 in.

Purple track supports and dowel connectors

1 power spring pull back wind up motor

1 other unknown part

Miscellaneous hinges and connectors; all in very good condition.

All pieces in excellent to very good preowned condition with no visible flaws.