The Dynamic Rocker Back Interface moves in response to client forces and then returns the client to an upright and neutral starting position. The DRBi reduces client injury, equipment breakage, and extensor forces, as well as provides movement.

Product Info: https://www.seatingdynamics.com/dynamic-rockerback/

Cast Study / Blog: https://www.seatingdynamics.com/2016/10/17/3-reasons-provide-dynamic-posterior-movement-trunk-pelvis/