• Rubber, plastic
• Boat pump adapter--used for kayak, inflatable boat, sports rowing boats accessories,air supply
• Inflatable adapters--durable and professional, fit for boat and kayak use ,inflatable boat sup pump adaptor
• Kayak air attachment--high flexibility, high strength, replaceable and useful,electric pump head connector
• Kayak adapter--lightweight design, portable to carry to where you need,paddle board adapter
• Inflatable kayak adapter--air adapter made of stable material, durable and not easy to damage or deform,rubber pump adapter