Sepcifications: the lenght of table: 2050mm. the width of table: 480mm. the minimum and maximum of table: 800mm-1000mm. rising of back: 100mm. power supply: AC220V50Hz. pitch: > 30 retrovert: : > 25. left: > 15. right: > 15. the board of head (up): > 45. the board of head(down): > 90. the board of leg(down): > 90. the board of leg(outside): > 90.