ECX Caster Blck Steer Block RR Hub (2): 1:10 2wd All Made by ECX Electrix; ECX Electrix is a United States based company; parts are sourced from China producers ECX Electrix part number 234000; UPC 605482095560 This item works with: ECX 1:10 AMP Desert Buggy, 1:10 AMP MT, 1:10 Torment Short Course