Underpart of square tube 30x30x2 mm, not movable. Basic: With transverse bracing and levelling feet. Possibilities for mobility see list of extras, page 32. Note: Therefore we recommend longitudinal bracing. Lying surface 2-sectioned: Head part upwards adjustable (+30°) by 2 metal rachets, safety and for longevity. Length of head part: 550 mm Foot part fixed. Length: 1.400 mm Standard-Thickness of upholstery: 6 cm