CONFIGURATION 1.90 degree rotating glass spittoon 1set 2.24V DC motor chair 1set             3 LED operation light 1set             4 Down mounted instrument tray  1set             5 3-way syringe  (tray)hot water 1set             6 3-way syringe  (asistant tray)cold  water 1set             7 main control systerm 1set             8.strong suction tube