Boat Seat Swivel(YS15-B)Qinglin tractor truck seat YS151.Seat frame : steel frame2.Inside the seat: High density foam3. Easy Installation and years of duration4.Cover material: Black PVC or fabric5.With movable slide track6.Backrest adjustable7.Weight adjustable8.Spring mechanical suspension9.Options:Headrest,swivel,armrest,micro switch,seat beltFore and aft adjustment175mBackrest angle adjustment35-170degreeWeight adjustment50-130kgsSuspension stroke80mmHeight adjustment60mm, three gearCover materialblack PVC or fabricOptionsHeadrest,safety belt, document bag,armrest,turning machanism