Hot Racing Losi Mini Rock Crawler Aluminum Center Drive Shafts MRC37H01 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 MRC37H01; UPC 083745575620 This item works with: Losi 1:18 Mini-Rock Crawler RTR