● OST technology Ultra strong Aluminum 6000 frame 

● HDPE decking 

● TPU Binding with gear rachet buckle 

● Aircraft anodizing Aluminum claws and rivet 

● Double-layer PU band Pivot 

● Rotating toe cord 

● Color: Customized 

● One Black Nylon carry bag for each Pair 

● Size :8*21",8*25",9*30",10*36"