Specifications: 10” – A = 8.23”, B = 2.32”, C = 1.59”, D (radius) = 0.64”, E = 0.63”, F = 2.68”, G = 0.43”, H = 1.48”, I = 9.44”, J (radius) = 1.53” Weight = 1.35 lbs. 12” – A = 8.4”, B = 2.75”, C = 1.90”, D (radius) = 0.64”, E = 0.97”, F = 3.78”, G = .75”, H = 1.71”, I = 11.38”, J (radius) = 1.57” Weight = 2.2 lbs. 15” – A = 9.7”, B = 2.8”, C = 2”, D (radius) = 0.64”, E = 1”, F = 4.33”, G = 0.47”, H = 2.04”, I = 14.25”, J (radius) = 1.57” Weight = 2.88 lbs.Choose 1, 2, 4, 6 or 10 pack for bulk savings. Pick from 10 inch, 12 inch or 15 inch sizes. Corrosion resistant cast aluminum construction. Recessed mounting holes protects line chafe and fraying. Easy to secure to S-shaped horns.Date First Available: August 10, 2016. Best Sellers Rank: #166,129 in Sports & Outdoors. Customer Reviews: 4.7 out of 5 stars 39 ratings 4.7 out of 5 stars. : B089W35QMP. Size: ?10". Style: ?01-Pack. Manufacturer: ?MarineNow. Brand Name: ?MarineNow. Package Weight: ?0.5 Kilograms. Item Package Dimensions L x W x H: ?9.21 x 3.27 x 2.87 inches.