Welcome to B igBowl Store! Features: 1.Material:Made of high-quality copper. 2.Application:It can connecte hose. 3.Installation:Align the groove of the adapter to the groove of the gas can, and rotate clockwise until it cannot rotate. 4.Note:Be careful to remove the adapter immediately after use to prevent the gas from slowly flowing. Package Included: extension column*4 Please check the tracking information on teacking website Please contact us by meesage,e-mail,or trade mnager Check the package and item caefully All sales are considered final. If merchandise you received is defective or damaged in the long transit, please contact us freely. We will give you a satisfying solution ASAP. If other reason, you want to ship it back to us, buyer will be responsible for the returning shipping fee and we will send the replacement after receiving the returned item. Item will be sent out within 24-72 Bussiness hours after payment confirmaiton.(Excluding Weekend & Holiday).If you have request such as color,address and so on,please just leave us message,then we will arrange it as your request. We ship to alipay confirmed address ONLY. Please confirm your address in alipay is matched with your shipping address before you pay