25 Best Contemporary art Pictures The WoW Style Polyform A 5 Buoy 27" Diameter Black [A 5 BLACK]. A 5 Buoy 27" Diameter Black 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 Dual valve inflation deflation system Excellent choice for a rafting fender One (1) piece design Technical Specifications: Size 27" x 36" (68. 6 x 91. 4cm) Eye Diameter 1. 25" (3. 2cm) Circumference 84. 9" (215. 5cm) Volume 47. 6 gallons (180. 2L) Boat Size 60' and greater (18. 3M) *Sold as an Individual Specifications: Color: Black Diameter (Inches): 27" Box Dimensions: 5"H x 26"W x 36"L WT: 21 lbs Brochure (pdf)