Kool Stop - V-Type 2Kool Stops New V-Type 2 insert just got heavier with 1.5mm more pad material than Kool Stops original V-Type insert and still fits most all Shimano Style V-Brake holders Features: Water GroovesDual CompoundRim FriendlyPad Compound Explanation:Black - Kool Stops standard compound which is great for all weather conditions, but designed for dry condition riding.Salmon - Kool Stops most famous Salmon compound is also one of Kool Stops most aggressive compounds for extreme all weather conditions especially in the wet, but still superb in the dry.Dual - A fusion of Kool Stops two finest compounds which will give superb braking in all weather conditions. This combination produces a more controlled smooth stop!Triple - Kool Stops triple compound is Kool Stops most aggressive compound combination for superb braking and controlled stopping in all weather conditions.Ceramic - This compound was designed for ceramic coated rims and is great in all weather conditions.Carbon - Kool Stops original carbon compound which works great for most carbon wheels but will wear quicker on fast steep decents.Carbon 2 - This compound works great on most carbon wheels and is desiged to withstand those fast steep decents without a lot of pad wear.1003 - Our newest carbon compound designed for the cross bike racers to give superb braking in any condition that you can throw at it.Clear - is an extreme compound for only experienced trick or trails riders needing a compound that will instantly lock the wheels.