One thing worth mentioning - you need to make sure they'll fit your levers as they come in different versions. I bought some for my Pauls Love Levers and they didn't fit! -turns out they were a Shimano-fit model..
True dat, forgot to mention, as stated on the cards. The blue fits : All Shimano XT, DX, Ritchey, Dia Compe SS-7 and Suntour XCLTD.
The Red one fits : Shimano XTR, XT Rapid Fire Plus and Suntour XC Pro.