#11 DURABLE MATERIAL - Made from high quality marine-grade UV-resistant PVC, effectively preventing attrition and collision; Last more than 3 years BUFFER PROTECTION - Inflatable fenders feature great buffer effect, protecting boats and docks from damage caused by heavy collision between hard surfaces SCIENTIFIC DESIGN - Designed with reinforced eyelets on both ends, it can be hung with lines vertically or horizontally; Vertical ribs design adds strength and minimizes roll for puncture- and tear-resistance FENDER KIT - The set includes 4-pack 6.5''x24'' fenders, 4-pack 5.2' rope (3/8” diameter), 4 inflating needles and a pump to inflate so you don’t need anything else to set it up EASY TO USE - The fender fits for boat size 19-5/8ft to 29-1/2ft, easy to install and take off, ideal for boats, docks, yachts, sailboats, row boats, etc