• copper and rubber and plastic
• Kayak hose adapter:used for kayak, inflatable boat, sports rowing boats accessories,kayak adapter
• Pump adapter for kayak:it is durable with strong sealing and leak-proof performance, excellent air leakage performance,air adaptor
• Multifunction air pump adapter:lightweight design, high flexibility, high strength, replaceable and useful,boat pump adapter
• Boat air connector:the multi-function adapter can meet all your needs and reduce your burden,boat hose adapter
• Kayak supplies:durable and professional, fit for boat and kayak use ,multifunction pump adapter