... iron frame and armrest 3)multi-function/synchro mechanism4)5-star polish aluminum base and on castors5)volume:0.16- ... . mechanism: simple, multi-function, butter fly, synchro mechanism4. base: 5-star base, polish aluminium, high grade nylon, chrome iron base etc ... vinyl wall paper, fabric back wall paper, natural wall paper.5) Lights: home collection, automobile lightings.6) Project case: solution ...