Team Losi Diff Service Kit Tungsten Balls: 22-4 Made by Team Losi Racing; Team Losi Racing is a United States based company; parts are sourced from Taiwanese producers Team Losi Racing part number 232026; UPC 605482568132 This item works with: Losi 1:10 TLR 22-4, 1:10 TLR 22-4 2.0