Lewmar Size 7 Round End Standard Portlight Color:White it features a windproof fabric

it features a windproof fabric with a water repellent finish

Single loop head

high performance ball bearing races minimise friction through full working load range

Fastener Size: 1/4" (6mm)

Lewmar Size 7 Round End Standard Portlight Color:White it features a windproof fabricProduct Description Lewmar Size 7 Round End Standard Portlight Specifications Acrylic color Smoke Grey Version Opening Weight (lb) 5. 28 Acrylic Window Thickness (in) 5 16 Dimensions Overall Width X (in) 7 1 2 Overall Length Y (in) 16 3 4 Overall Height Z (in) 5 32 Overall Radii R (in) 3 3 4 Cut Out Width X1 (in) 6 3 4 Cut Out Length Y1 (in) 15 15 16 Cut Out Radii R1 (in) 3 3 8 Installation Fast and easy installation with no complicated cut out shape.