The manufacturer of the product is Castro, one of the world's largest suppliers of buoys, floats and safety fenders. The mounting rings are made from a stronger polymer and can withstand higher loads.
There are three colors to choose from:
The main body is made from a single piece of rotomoulded, resilient and soft PVC, making it more flexible for better cushioning and elasticity. The chamber has thick walls and is designed for a normal inflation pressure of 0.15 bar at about 20 °C. Maintaining and adjusting the pressure is possible through a special built-in valve. It is inflated using a compressor or a boat pump.
Boat owners and skippers buy such devices to protect the hull of the boat from chipping or scratching during mooring or when mooring side by side with other ships. They are placed at the points of contact between two ships and serve as an insulating pad that prevents friction.
The size is 22 cm in diameter by 75 cm in length. Fender parameters are often chosen based on experience that the length of the fender should cover up to two-thirds of the freeboard of the yacht. When parking at floating berths that go up and down with the tides, it can be less.