The components, when used together, provide a great way to gain elevation from one level to another and act as a helix kit. These component types are sold separately so that you may have the freedom to create a helix that suits your needs where you only need to purchase what you need. Some may wish to purchase all components necessary to create a complete helix while others may wish to only purchase the items necessary to complete the loops and then create their own risers to achieve a specific grade profile. 

For detailed information about helix components, please see the Info Center