A-4 Buoy 20.5″ Diameter – GreyThe A-Series is the product that launched the Polyform story. This all-purpose product, with the signature “blue ropehold” has proven itself in the most adverse conditions.Marking gear used in heavy seas is no easy task. That’s why more fishermen use Polyform A-Series than all other buoys combined. You name it, ocean, sea, or river, and the A-Series has been there.Put your trust in Polyform’s most versatile and well-known product.Features:Even wall thickness for maximum thicknessHeavy duty reinforced ropeholdsPolyform’s unique vinyl valve systemDual valve inflation/deflation systemExcellent choice for a rafting fenderOne (1) piece designTechnical Specifications:Size – 20.5″ x 27″ (52.1 x 68.6cm)Eye Diameter – 1.125″ (2.9cm)Circumference – 64.4″ (163.6cm)Volume – 22.5 gallons (85.2L)Boat Size – 50 – 60′ (15.2 – 18.3M)*Sold as an Individual Specifications:Diameter (Inches): 20.5″Color: GreyBox Dimensions: 10″H x 20″W x 26″L WT: 9.65 lbsBrochure (pdf)