product description 1.Package Include: a pair of Blue + a pair of Orange ( 2 in 1 set ) 2.Double airbag design,more safety,more comfortable and more buoyancy for floating,for weighing up to .Suitable for both kids and adults. 3.Non-toxic environmental protection of PVC material,thickening made to long time use. 4.The product suitable for both kids and adults,some customer feedback it is difficult roll-up to arm,maybe cause by gasing too much,suggestion air enough,or you can trap to the arm frist,then gasing air to feeling comfortable. If you feeling too expand,please hold the stomate to vent few,it is adjustment as you feeling. 5.Temperature is low in winter,PVC material easy become hard and crisp,Please put it in warm water about 15 minites before gasing air.Otherwise it is easy to cracking.