... ,#4,#3,#2,#1Outer Material: shiny pvc synthetic leatherInner Bladder: Rubber bladder,good air retentionInner Layers: 3 LayersThickness: 1.8mm/2 ... you want to playing the rope football,you put the rope in you hand,then kid the ball with your feet,when the balls ... damage something when playing,because you can control the flying ball with the rope in your hand.when it rains,it is unavailable ...