Low profile unit, it only adds 8mm to the chair working height Low lift to prevent feet and finger traps Low friction ball castors for easy movement Creates a flexible clinic space Quick changes to clinic layout Easy fitting Complete stability of the dental chair Pneumatic independent suspension to avoid floor damage Modular design gives flexibility to suit a range of chairs Air pressure control contained within the Shifter Base to compensate for any supply pressure variations Lift capacity in excess of 480kg No warranty problems for not fixing the base to the floor Takara 050 Belmont A-dec and UFSK approval