backyard swing,outdoor swing,double swing: 1:The diameter:114cm 2:The materail:galvanization tube. 3:Seat:plastic fish or PE backyard swing,outdoor swing,double swing:model of XYY-H0121:The diameter:11.4cm2:The materail:galvanization tube.3:Seat:plastic fish or PE board4:it use outdoor, amusement park,square,school.backyard etc.5:Lot's of fun for kids6:children happy we happy!! Backyard Swing