Used (normal wear), Bruno Independent Living AID The seat assembly on the SRE-3050 is designed to swivel and to lock at 0, 67 and 90 degrees. Pushing down on either side of the swivel lever allows you to swivel the seat to a convenient position for transferring into or out of the seat. Once you release the swivel lever, the seat will lock at the next available position. To lower the seat assembly from a folded position to the riding position, simply push down on the seat.. Make an offer!;