Height Adjustable Aluminum Frame| Easily folds for transport| Revised Hand grip design for increased user comfort| Soft rubber wheels adhere to any surface and will not allow the Nimbo to slide backwards when using one-directional setting| One directional 5″ rear wheels with aluminum ratchet and pin mechanism for increased durability| One directional override bracket to allow for two directional movement| Easily switch from swivel to non-swivel front wheel settings