Hot Racing SMFD139W Steel +3mm Extension Axle Stubs - Losi 1/24 Micro Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number SMFD139W; UPC 083745735109 This item works with: Losi 1:24 Micro 4wd short course