The offered Rubber Coil Spring Booster is commonly used to make up for collapsed or weak springs. This is a huge turned metal piece that possesses a ½-inch square head. Besides, the different sort is a spreader that functions admirably. It is square plate with varied depressions for the coils. This is extended with the application of nuts and long screws. There is a round elastic addition which is the same spring size; however, it is less powerful. The Rubber Coil Spring Booster is an air sack that is embedded inside the spring and functions same as an air shock.