This is the Diff Oil Kit for the Revo by Traxxas.
Traxxas performance differential oils make it easy to increase or decrease the limited slip action of the gear differential by using higher or lower viscosity oil. Depending on the track conditions, altering the limited slip capability can enhance turning performance for faster exit speeds.
Three bottles of oil (10K,30K,50K weights).
Three 2oz (59ml) bottles of oil
Three pour spouts