This foam is the stock foam that is sold with in all of 8th scale buggy Lugz RC Racing tires.
 
Also fits in 10th Scale Shortcourse & drag cars 
 
OUR Green foam is  10.5 Shore A      - weights 10 grams 
-Item is sold as a set of four foams.
 
Fits great in our tires and OTHERS
 
Foam Comparison:   Approx. #'s - changes per batch 
OUR Green 10.5 Shore A      - 10 grams 
OUR Grey 8 Shore A              - 8.5 grams
Others Grey 10 Shore A        - 11 grams
Others Blue 10. 5 Shore A   - 10.5 grams
Others Black 9 Shore A        - 9 grams
Others Red 12.5 Shore A     - 13 grams