BDE201-C Manual home care bedAdjustable Overall size: L2120*W1050*H380-720mm The three functions are showed in the picture The first cranks function is head rise-and-down(0-80°) The second cranks function is foot rise-and-down(0-35°) The third cranks function is HI/LO for the whole bed frame(distance between bed frame and floor: lowest380-highest720mm)