• copper and rubber and plastic
• Pump adapter for kayak:lightweight and portable, the adaptor is easy to carry and store,Kayak Adapter
• Boat air connector:professional and practical design, strong sealing, anti-leakage, let you use it more easily,Multifunction Air Pump Adapter
• Pump adapter:it is durable with strong sealing and leak-proof performance, excellent air leakage performance,Boat Hose Adapter
• Kayak supplies:used for kayak, inflatable boat, sports rowing boats accessories,Boat Pump Adapter
• Kayak hose adapter:the product suitable for kayak, dinghy, inflatable, surfboard, etc,Multifunction Pump Adapter