Hot Racing RVO128AR06 Piggyback Adj. Rebound Shock Blue 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 RVO128AR06; UPC 083745882292 This item works with: Traxxas Revo 3.3 5309, Summit