pneumatic rubber fenders

pneumatic rubber fender(near the ball) is made of rubberized cord fabric, filled into the compressed air, The fender body is covered by a chain net, wire net or fiber net. Chain nets are able to withstand corrosion longer and are usually built with used tyres and rubber sleeves to provide additional protection. Fiber nets use only rubber sleeves. Wire nets are light and more easily repaired.
you can hang it on the side of the ship or pier to slow the ship and between ships, reduce the impact