Hot Racing MCC543T06 Internal Spring 43mm Air Shocks (blue)(4) - Losi Micro Craw 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 MCC543T06; UPC 083745542516 This item works with: Losi 1:24 Micro Crawler Trekker