Sepecifications:
1. Table size: 84*41mm
2. Table rotating:0~90°
3. Table Sliding:33mm
4. Chair Elevation:50~70mm
5. Chair Rotating: 60° rightward

This is the very recommend type, 2 instruments like slit lamp, auto-refractometer, keratometer can be loaded, the chair and table panel can be adjustable, there's a metal part under the table panel to avoid injuring testee's legs when chair slimping up!