The 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 Redesigned ropehold for A-1 through A-7 for improved strength and durability Dual valve inflation/deflation system for sizes A-5 A-6 & A-7 Excellent rafting fender choice Offered in seven brilliant high-visibility colors&'; Size: 9 x 11.5 in Eye Diameter.6 in Circumference: 28.3 in Buoyancy Rating: 13 lbs Product : POLYFORM A SERIES BUOY A-0 9" DIAMETER RED Manufacturer : POLYFORM US Manufacturer Part No : A-0-RED UPC : 743952900386.