The back section, seat section, hydraulic cylinder, and table base are made of ABS synthetic resin, which protects them from knocking, scratching, rusting, and washing damages. The back section, seat section, hydraulic cylinder, and table base are made of ABS synthetic resin, which protects them from knocking, scratching, rusting, and washing damages. The tabletop is 125cm long and 55cm wide. The back section can move from 45° up to 15° down and the seat section can be from horizontal to 15° up. The height of tabletop is adjustable from 70cm to 100cm and controlled by hydraulic cylinder, electric pump and waterproof foot switch. A well-designed paper roll holder is located in the back section. Please refer the illustration.