• nylon, alloy
• Air pump converter:using this adapter, you can easily replace the special rubber boat pump to a standard valve,Air Pumping Head Adapter
• Air pump adapter for inflatables:can be used with car air pumps and conventional tire air pumps,Paddle Board Pump Attachment
• Sup pump converter:made by nylon, alloy material, this air pump adapter is strong and durable,Pumping Head Connector
• Air pump adaptor:cost- , you can buy this practical product at an ,Air Compressor Attachments For Inflatables
• Inflatable boat pump adaptor:fit paddle boards, canoes, rubber boats, boats, kayak, etc,Paddle Board Pump Adapter