size: acryl,glass,aluminum,resin,fiberglass,computer panel quadrate(with massage bathtub, with stair and handrail),for two persons acrylic:3mm main board:8-9mm glass door:5mm cystal glass:8mm aluminum:1mm massage pump:750w/piece massage jets:6 pieces/suit voltage:110V/220V/240V/380V function: top shower with light,steam,CD,radio,surf,foot massage,