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 thickness Heavy duty reinforced ropeholds Polyform&';s unique vinyl valve system Dual valve inflation/deflation system Excellent choice for a rafting fender One (1) piece design Technical 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: Grey Box Dimensions: 10"H x 20"W x 26"L WT: 9.65 lbs Brochure (pdf) .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }