Aluminum Boat Trapezoidal Hatch Porthole Window Tempered Glass 3 Sizes Marine Features: Heavy-duty aluminum frames Metal grey powder coated 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 adjustable supports 3 overall sizes to choose from: 540x650mm?21.3x 25.6 Inch? 640x578mm?25.2x 22.8 Inch? 695x577mm?27.0 x 22.7 Inch? Corner Radius: R45mm,R1.8 inch Frame: Metal grey powder coated aluminum Glass: 6mm thick, 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.