Hot Racing Black Super Silicone Shock Boots (2) RDP34201 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 RDP34201; UPC 083745123937 This item works with: Associated B44.x, MTA4, Monster GT, Monster GT 4.6, RC-10 B4.x, RC-10 original aluminum chassis, RC-10 T4.x, RC-10GT2, TC-3 Electric Sedan; HPI Electric E Firestorm; HPI Nitro RS4 Nitro MT2 4wd, RS4 RTR3 EVO, Savage X, Savage X 4.6; Kyosho Mad Force, MP6, 7.5,777, Spider MK2, Super 10, TF2 Spider EP, USA-1 Nitro; Losi 1:10 Speed T, 1:10 XX Buggy, 1:10 XXT Truck, 1:10 XXX Buggy, 1:10 XXX-NT truck, 1:10 XXX-S Sedan, 1:10 XXX-T CR Truck, 1:8 LST, LST2, or Afters