... . Backrest, footrest, Height adjustment 3. Four noiseless castors with brakes Manual Multi-function Emergency Stretcher with Three CranksModel No.: SLV-B4307 Specification: 1900*750 ... of leather, soft and comfortable5. Four noiseless castors with brake6. Three functions: Backrest, footrest, height adjustment Manual Multi-function Emergency Stretcher with Three Cranks