Specification Packing: 1PC Material: plastic Bottom diameter: 26mm (1in) Panel diameter: 31mm (1.22in) Height: 15mm (0.59in) Color: White Sturdy, antiaging, long service life, durable, waterproof and dustproof. Screwin design The surfboard automatic exhaust valve adopts a screwin design, cock gear, and good sealing. Lightweight, antiultraviolet radiation, strong and durable. Easy to install and remove and easy to use. Protective vents for surfboards and boats, allowing vents to function by allowing air and other gases to freely pass through the membrane, but preventing liquids from entering the enclosure. Suitable for standup paddle boards, surfboards, boats, etc.Used for stand-up paddle boards, surfboards, boats, etc. It adopts screw-in design, plug gear, and good sealing performance. Sturdy, aging resistant, long service life, durable, waterproof and dustproof. Bottom diameter: 26mm (1in) Panel diameter: 31mm (1.22in) Height: 15mm (0.59in. Material: plastic. Color: white. Packing: 1 pc.Date First Available: June 9, 2021. Best Sellers Rank: #298,492 in Sports & Outdoors. Customer Reviews: 5.0 out of 5 stars 3 ratings 5.0 out of 5 stars. : B096XGJ28D. Part Number: ?SAVPEVB-W-1. Manufacturer: ?LQ Industrial. Brand Name: ?LQ Industrial. Package Weight: ?0.05 Kilograms. Item Package Dimensions L x W x H: ?3 x 3 x 0.2 inches.