Front Round base Coil Spring Boosters
Material: NR+RR
Size: 6" OD, 4" ID, 1.5"Thickness
Hardness: 60-70 Shore A  

Applications: Rubber coil spring boosters are inserted between coils of springs with tap of a hammer.

Stops dangerous spring sag. Restores life to coil springs, corrects alignment and raise front/rear of vehicle to relieve tension/compression/weight on springs.

Materials: Natural Rubber and Reclaimed Rubber.

Hardness: From 75 to 85 shore A durometer.

Colors: Black color

Temperature Rage: -40°C to +120°C.