Aluminum Boat Round Hatch Porthole Window Tempered Glass 6 Sizes Marine Yacht Features: Anodized heavy-duty aluminum frames No sharp corners to snag lines or sails Spare parts available 6mm tempered smoke glass Quick acting, adjustable tie down dogs Heavy-duty 316L stainless steel support 6 overall sizes to choose from: 425mm,475mm,525mm,575mm,625mm,675mm Frame: Anodized Aluminum Glass: 6mm tempered glass, smoke color The listing price does not include any destination duties/taxes/custom fees/etc that will be due when the product arrives at destination countries/regions. It is the customer's responsibility to pay for all custom duty/taxes/custom fees if any.