●Compatibility: Compatible with HSP 1/8 1/10 RC car engine exhaust pipe, which can be tightly connected to the exhaust pipe. ●Practical to Use: Suitable for high-temperature nitro RC car exhaust pipes to prevent hot hands when the flame is turned off. It is highly practical. ●Convenient to Carry with: Small size, light weight, easy to carry, easy to carry, no burden on RC cars. ●Easy to Install: RC exhaust pipe extension tube makes your remote control car more cool, easy to install and disassemble, high performance. ●Note: Must not be used with petrol. Nitro glow fuel only.