Motorized pull tube assembly controls frame/spring angle adjustment for knee and back comfort. Efficient spring-loaded drive shaft controls bed height adjustment. No cables to rig or maintain. Seconds to install. Six position, full control pendant, controls the upper body, knee position and bed height. Head-end height 36 3/8”, foot-end height 33 3/4”. Overall length 88”, bed width 36”. 80” spring. 85 rpm head, foot and hi/lo motors. Mattress not included.