ZC-A300 Dental Chair Package (2020 Type ) ZC-A300 Dental Chair Package (2020 Type ) In order to ensure smooth operation and patient comfort, ZC-A300 2020 type dental chair packages are fully flexible for the dentist to make treatment easier. Features The doctor table is equipped with a big tray and a rotary handpiece holder, which is extremely practical. The light arm that moves up and down in a large range can be close to the patient during treatment and be moved away after operation to avoid knock. The stable, durable and wide patient chair is designed with lumbar support, ensuring optimum patient comfort especially when lying on it.