So I bought these to add traction to my JDM gas, brake and dead pedals. The charts made it easy to fit, the quantity and variety of sizes made it a very good deal, pretty much everything I had in mind.
Pros
EASY TO USE. Rubber grommets are quicker and easier to install as they can only be fitted on one side. There is no need to reach the opposite side of the unit to install the lock nut.