No substitutions are allowed on the individual components of a Vernier Dynamics System. The components of the system are available “a-la-carte,” via their separate order codes.

Both the Dynamics Cart and Track System (DTS) and Dynamics Cart and Track System (DTS-LONG) are assembled as packages in advance; the a-la-carte prices reflect additional handling costs.

How do I buy the Go Direct Cart and Track system (order code DTS-GDX) with everything EXCEPT the tracks?