• nylon
• Boat adapter--use a standard fitting to couple with an air compressor or bike/tire pump,air adapter
• Air adapter--made of material for lasting use,boat adapter
• Note: it is recommended to inflate the board by hand until it becomes difficult to pump, and then use the adaptor to off the pressure,pump adapter,boat adapter
• Sup pump adaptor--suitable for inflatable boat, kayak, , paddle sup board, etc,boat adapter
• Air pump adapter--pump sup with manual air pump or electric pump,boat adapter