1.low reaction force and high energy absorption 

 2.the fender performace is free from the influence of ship inclining and berthing 

 3.aplicable for dock ,water lock,different limitation water chanel,and dock sticking  out corner

 4.it is mounted on a fixed axle supported by special frame .which will rotate following with the axle.

5. it can roll with fender remove ,and generate a certain deformation