Abahub Warranty: we've been manufacturing fins for over 10 years. We know what we're doing and we stand by our products. If you're not happy with our products, we'll offer you replacement or refund with "No Question Asked" warranty. Easy to Install: With the "No-tool" screw, it takes just seconds to insert and remove the fins, you can install the fin on your board only in a few seconds. 1 Size Fits More: It fits more with 10 inches in depth, base width in 6.5 inches, and total weight with hardware of 10oz. This SUP fin is universally compatible. Suitable for Longboard, Surfboard, Stand-up Paddleboard with a standard 8.5" or 10.5" center fin box. Balance of speed, flow and response, suitable for all wave conditions, which it's a preferred choice for beginners and expert surfers. Strong & Durable: Made of plastic and fiberglass-reinforced nylon, with marine grade stainless steel screw and plate which is strong and stiff, no need to worry about being corroded and rusted by seawater, it can be used continuously. This surfboard/SUP center fin with high quality and reasonable price is made to last. Classic Design: This classic 10" fin has been tested for years to offer excellent balance of pivot and hold. The design of curve radian make it maneuverable for you to paddle on the SUP board and better control of direction and speed.Item Dimensions LxWxH: 10 x 5 x 2 inches. Sport Type: Surfing. Material: Nylon, Fiberglass. Color: black. Brand: Abahub. Date First Available: April 8, 2019. Best Sellers Rank: #129,887 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 138 ratings 4.6 out of 5 stars. : B07QBPMZN1. Skill Level: ?Beginner, Expert. Sport Type: ?Surfing. Size: ?10 inch black. Outer Material: ?plastic. Style: ?10 Inch-black. Part Number: ?SFN190410BK. Manufacturer: ?Abahub. Number of Items: ?1. Suggested Users: ?unisex. Material: ?Nylon, Fiberglass. Color: ?black. Brand Name: ?Abahub. Item Dimensions LxWxH: ?10 x 5 x 2 inches. Package Weight: ?0.3 Kilograms. Item Package Dimensions L x W x H: ?13.66 x 6.97 x 1.06 inches.